这是一个比较简单实用的菜单，最重要的是他不需要引用jQuery库。菜单在垂直方向上能做到自适应，当主菜单靠近顶部，子菜单将会在下面，当主菜单靠近底部，子菜单在上面。运用Modernizr的触摸检测功能，我们可以让子菜单的响应在pc上是hover，而在触摸设备上是点击。例子中还示范了如何在宽度比较窄的情况下如何调整布局。分享一个最好用的UI前端框架！
html代码：
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<ul id="cbp-tm-menu" class="cbp-tm-menu">
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<li>
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<a href="#">Home</a>
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</li>
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<li>
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<a href="#">Veggie made</a>
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<ul class="cbp-tm-submenu">
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<li><a href="#" class="cbp-tm-icon-archive">Sorrel desert</a></li>
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<li><a href="#" class="cbp-tm-icon-cog">Raisin kakadu</a></li>
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<li><a href="#" class="cbp-tm-icon-location">Plum salsify</a></li>
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<li><a href="#" class="cbp-tm-icon-users">Bok choy celtuce</a></li>
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<li><a href="#" class="cbp-tm-icon-earth">Onion endive</a></li>
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<li><a href="#" class="cbp-tm-icon-location">Bitterleaf</a></li>
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<li><a href="#" class="cbp-tm-icon-mobile">Sea lettuce</a></li>
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</ul>
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</li>
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<li>
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<a href="#">Pepper tatsoi</a>
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<ul class="cbp-tm-submenu">
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<li><a href="#" class="cbp-tm-icon-archive">Brussels sprout</a></li>
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<li><a href="#" class="cbp-tm-icon-cog">Kakadu lemon</a></li>
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<li><a href="#" class="cbp-tm-icon-link">Juice green</a></li>
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<li><a href="#" class="cbp-tm-icon-users">Wine fruit</a></li>
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<li><a href="#" class="cbp-tm-icon-earth">Garlic mint</a></li>
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<li><a href="#" class="cbp-tm-icon-location">Zucchini garnish</a></li>
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<li><a href="#" class="cbp-tm-icon-mobile">Sea lettuce</a></li>
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</ul>
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</li>
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<li>
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<a href="#">Sweet melon</a>
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<ul class="cbp-tm-submenu">
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<li><a href="#" class="cbp-tm-icon-screen">Sorrel desert</a></li>
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<li><a href="#" class="cbp-tm-icon-mail">Raisin kakadu</a></li>
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<li><a href="#" class="cbp-tm-icon-contract">Plum salsify</a></li>
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<li><a href="#" class="cbp-tm-icon-pencil">Bok choy celtuce</a></li>
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<li><a href="#" class="cbp-tm-icon-article">Onion endive</a></li>
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<li><a href="#" class="cbp-tm-icon-clock">Bitterleaf</a></li>
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</ul>
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</li>
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<a style="font-family: Arial; white-space: normal; background-color: #ffffff;" target="_blank" href="/topic/1132907">前端UI分享</a>
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</ul>
css代码分享一个最好用的UI前端框架！
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/* Iconfont made with icomoon.com */
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@font-face {
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font-family: ‘cbp-tmicons‘;
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src:url(‘../fonts/tmicons/cbp-tmicons.eot‘);
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src:url(‘../fonts/tmicons/cbp-tmicons.eot?#iefix‘) format(‘embedded-opentype‘),
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url(‘../fonts/tmicons/cbp-tmicons.woff‘) format(‘woff‘),
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url(‘../fonts/tmicons/cbp-tmicons.ttf‘) format(‘truetype‘),
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url(‘../fonts/tmicons/cbp-tmicons.svg#cbp-tmicons‘) format(‘svg‘);
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font-weight: normal;
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font-style: normal;
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}
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/* reset list style */
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.cbp-tm-menu,
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.cbp-tm-menu ul {
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list-style: none;
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}
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/* set menu position; change here to set to relative or float, etc. */
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.cbp-tm-menu {
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display: block;
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position: absolute;
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z-index: 1000;
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bottom: 0;
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width: 100%;
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background: #47a3da;
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text-align: right;
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padding: 0 2em;
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margin: 0;
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text-transform: capitalize;
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}
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/* first level menu items */
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.cbp-tm-menu > li {
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display: inline-block;
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margin: 0 2.6em;
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position: relative;
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}
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.cbp-tm-menu > li > a {
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line-height: 4em;
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padding: 0 0.3em;
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font-size: 1.2em;
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display: block;
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color: #fff;
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}
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<a style="font-family: Arial;" target="_blank" href="/topic/1132907">前端UI分享</a>
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.no-touch .cbp-tm-menu > li > a:hover,
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.no-touch .cbp-tm-menu > li > a:active {
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color: #02639d;
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}
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/* sumbenu with transitions */
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.cbp-tm-submenu {
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position: absolute;
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display: block;
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visibility: hidden;
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opacity: 0;
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padding: 0;
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text-align: left;
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pointer-events: none;
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-webkit-transition: visibility 0s, opacity 0s;
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-moz-transition: visibility 0s, opacity 0s;
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transition: visibility 0s, opacity 0s;
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}
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.cbp-tm-show .cbp-tm-submenu {
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width: 16em;
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left: 50%;
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margin: 0 0 0 -8em;
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opacity: 1;
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visibility: visible;
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pointer-events: auto;
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-webkit-transition: visibility 0s, opacity 0.3s;
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-moz-transition: visibility 0s, opacity 0.3s;
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transition: visibility 0s, opacity 0.3s;
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}
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.cbp-tm-show-above .cbp-tm-submenu {
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bottom: 100%;
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padding-bottom: 10px;
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}
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.cbp-tm-show-below .cbp-tm-submenu {
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top: 100%;
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padding-top: 10px;
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}
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/* extreme cases: not enough space on the sides */
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.cbp-tm-nospace-right .cbp-tm-submenu {
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right: 0;
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left: auto;
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}
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.cbp-tm-nospace-left .cbp-tm-submenu {
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left: 0;
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}
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<a style="font-family: Arial;" target="_blank" href="/topic/1132907">前端UI分享</a>
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/* last menu item has to fit on the screen */
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.cbp-tm-menu > li:last-child .cbp-tm-submenu {
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right: 0;
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}
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/*
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arrow: depending on where the menu will be shown, we set
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the right position for the arrow
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*/
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.cbp-tm-submenu:after {
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border: solid transparent;
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content: " ";
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height: 0;
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width: 0;
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position: absolute;
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pointer-events: none;
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}
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.cbp-tm-show-above .cbp-tm-submenu:after {
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top: 100%;
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margin-top: -10px;
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}
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.cbp-tm-show-below .cbp-tm-submenu:after {
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bottom: 100%;
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margin-bottom: -10px;
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}
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.cbp-tm-submenu:after {
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border-color: transparent;
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border-width: 16px;
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margin-left: -16px;
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left: 50%;
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}
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.cbp-tm-show-above .cbp-tm-submenu:after {
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border-top-color: #fff;
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}
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.cbp-tm-show-below .cbp-tm-submenu:after {
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border-bottom-color: #fff;
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}
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.cbp-tm-submenu > li {
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display: block;
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background: #fff;
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}
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.cbp-tm-submenu > li > a {
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padding: 5px 2.3em 5px 0.6em; /* top/bottom paddings in ‘em‘ cause a tiny "jump" in Chrome on Win */
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display: block;
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font-size: 1.2em;
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position: relative;
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color: #47a3da;
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border: 4px solid #fff;
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-webkit-transition: all 0.2s;
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-moz-transition: all 0.2s;
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transition: all 0.2s;
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}
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.no-touch .cbp-tm-submenu > li > a:hover,
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.no-touch .cbp-tm-submenu > li > a:active {
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color: #fff;
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background: #47a3da;
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}
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/* the icons (main level menu icon and sublevel icons) */
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.cbp-tm-submenu li a:before,
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.cbp-tm-menu > li > a:before {
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font-family: ‘cbp-tmicons‘;
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speak: none;
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font-style: normal;
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font-weight: normal;
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font-variant: normal;
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text-transform: none;
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line-height: 1;
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vertical-align: middle;
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margin-right: 0.6em;
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-webkit-font-smoothing: antialiased;
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}
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<a style="font-family: Arial;" target="_blank" href="/topic/1132907">前端UI分享</a>
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.cbp-tm-submenu li a:before {
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position: absolute;
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top: 50%;
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margin-top: -0.5em;
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right: 0.5em;
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}
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.cbp-tm-menu > li > a:not(:only-child):before {
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content: "\f0c9";
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font-size: 60%;
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opacity: 0.3;
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}
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.cbp-tm-icon-archive:before {
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content: "\e002";
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}
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.cbp-tm-icon-cog:before {
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content: "\e003";
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}
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.cbp-tm-icon-users:before {
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content: "\e004";
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}
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.cbp-tm-icon-earth:before {
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content: "\e005";
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}
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.cbp-tm-icon-location:before {
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content: "\e006";
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}
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.cbp-tm-icon-mobile:before {
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content: "\e007";
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}
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.cbp-tm-icon-screen:before {
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content: "\e008";
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}
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.cbp-tm-icon-mail:before {
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content: "\e009";
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}
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.cbp-tm-icon-contract:before {
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content: "\e00a";
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}
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.cbp-tm-icon-pencil:before {
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content: "\e00b";
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}
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.cbp-tm-icon-article:before {
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content: "\e00c";
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}
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.cbp-tm-icon-clock:before {
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content: "\e00d";
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}
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.cbp-tm-icon-videos:before {
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content: "\e00e";
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}
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.cbp-tm-icon-pictures:before {
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content: "\e00f";
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}
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.cbp-tm-icon-link:before {
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content: "\e010";
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}
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.cbp-tm-icon-refresh:before {
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content: "\e011";
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}
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.cbp-tm-icon-help:before {
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content: "\e012";
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}
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/* Media Queries */
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@media screen and (max-width: 55.6875em) {
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.cbp-tm-menu {
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font-size: 80%;
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}
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}
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<a style="font-family: Arial;" target="_blank" href="/topic/1132907">前端UI分享</a>
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@media screen and (max-height: 25.25em), screen and (max-width: 44.3125em) {
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.cbp-tm-menu {
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font-size: 100%;
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position: relative;
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text-align: center;
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padding: 0;
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top: auto;
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}
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.cbp-tm-menu > li {
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display: block;
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margin: 0;
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border-bottom: 4px solid #3793ca;
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}
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.cbp-tm-menu > li:first-child {
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border-top: 4px solid #3793ca;
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}
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li.cbp-tm-show > a,
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.no-touch .cbp-tm-menu > li > a:hover,
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.no-touch .cbp-tm-menu > li > a:active {
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color: #fff;
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background: #02639d;
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}
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.cbp-tm-submenu {
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position: relative;
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display: none;
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width: 100%;
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}
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.cbp-tm-submenu > li {
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padding: 0;
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}
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.cbp-tm-submenu > li > a {
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padding: 0.6em 2.3em 0.6em 0.6em;
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border: none;
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border-bottom: 2px solid #6fbbe9;
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}
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.cbp-tm-submenu:after {
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display: none;
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}
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.cbp-tm-menu .cbp-tm-show .cbp-tm-submenu {
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display: block;
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width: 100%;
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left: 0;
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margin: 0;
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padding: 0;
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bottom: auto;
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top: auto;
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}
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}
javascript代码
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/**
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* cbpTooltipMenu.js v1.0.0
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* http://www.codrops.com
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*
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* Licensed under the MIT license.
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* http://www.opensource.org/licenses/mit-license.php
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*
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* Copyright 2013, Codrops
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* http://www.codrops.com
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*/
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;( function( window ) {
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‘use strict‘;
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var document = window.document,
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docElem = document.documentElement;
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function extend( a, b ) {
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for( var key in b ) {
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if( b.hasOwnProperty( key ) ) {
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a[key] = b[key];
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}
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}
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return a;
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}
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// from https://github.com/ryanve/response.js/blob/master/response.js
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function getViewportH() {
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var client = docElem[‘clientHeight‘],
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inner = window[‘innerHeight‘];
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if( client < inner )
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return inner;
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else
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return client;
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}
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// http://stackoverflow.com/a/11396681/989439
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function getOffset( el ) {
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return el.getBoundingClientRect();
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}
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// http://snipplr.com/view.php?codeview&id=5259
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function isMouseLeaveOrEnter(e, handler) {
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if (e.type != ‘mouseout‘ && e.type != ‘mouseover‘) return false;
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var reltg = e.relatedTarget ? e.relatedTarget :
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e.type == ‘mouseout‘ ? e.toElement : e.fromElement;
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while (reltg && reltg != handler) reltg = reltg.parentNode;
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return (reltg != handler);
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}
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function cbpTooltipMenu( el, options ) {
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this.el = el;
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this.options = extend( this.defaults, options );
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this._init();
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}
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<a target="_blank" href="/topic/1132907">前端UI分享</a>
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cbpTooltipMenu.prototype = {
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defaults : {
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// add a timeout to avoid the menu to open instantly
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delayMenu : 100
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},
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_init : function() {
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this.touch = Modernizr.touch;
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this.menuItems = document.querySelectorAll( ‘#‘ + this.el.id + ‘ > li‘ );
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this._initEvents();
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},
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_initEvents : function() {
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var self = this;
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Array.prototype.slice.call( this.menuItems ).forEach( function( el, i ) {
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var trigger = el.querySelector( ‘a‘ );
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if( self.touch ) {
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trigger.addEventListener( ‘click‘, function( ev ) { self._handleClick( this, ev ); } );
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}
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else {
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trigger.addEventListener( ‘click‘, function( ev ) {
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if( this.parentNode.querySelector( ‘ul.cbp-tm-submenu‘ ) ) {
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ev.preventDefault();
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}
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} );
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el.addEventListener( ‘mouseover‘, function(ev) { if( isMouseLeaveOrEnter( ev, this ) ) self._openMenu( this ); } );
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el.addEventListener( ‘mouseout‘, function(ev) { if( isMouseLeaveOrEnter( ev, this ) ) self._closeMenu( this ); } );
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}
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} );
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},
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_openMenu : function( el ) {
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var self = this;
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clearTimeout( this.omtimeout );
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this.omtimeout = setTimeout( function() {
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var submenu = el.querySelector( ‘ul.cbp-tm-submenu‘ );
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if( submenu ) {
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el.className = ‘cbp-tm-show‘;
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if( self._positionMenu( el ) === ‘top‘ ) {
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el.className += ‘ cbp-tm-show-above‘;
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}
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else {
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el.className += ‘ cbp-tm-show-below‘;
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}
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}
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}, this.touch ? 0 : this.options.delayMenu );
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},
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_closeMenu : function( el ) {
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clearTimeout( this.omtimeout );
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var submenu = el.querySelector( ‘ul.cbp-tm-submenu‘ );
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if( submenu ) {
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// based on https://github.com/desandro/classie/blob/master/classie.js
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el.className = el.className.replace(new RegExp("(^|\\s+)" + "cbp-tm-show" + "(\\s+|$)"), ‘ ‘);
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el.className = el.className.replace(new RegExp("(^|\\s+)" + "cbp-tm-show-below" + "(\\s+|$)"), ‘ ‘);
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el.className = el.className.replace(new RegExp("(^|\\s+)" + "cbp-tm-show-above" + "(\\s+|$)"), ‘ ‘);
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}
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},
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_handleClick : function( el, ev ) {
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var item = el.parentNode,
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items = Array.prototype.slice.call( this.menuItems ),
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submenu = item.querySelector( ‘ul.cbp-tm-submenu‘ )
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// first close any opened one..
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if( this.current && items.indexOf( item ) !== this.current ) {
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this._closeMenu( this.el.children[ this.current ] );
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this.el.children[ this.current ].querySelector( ‘ul.cbp-tm-submenu‘ ).setAttribute( ‘data-open‘, ‘false‘ );
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}
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if( submenu ) {
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ev.preventDefault();
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var isOpen = submenu.getAttribute( ‘data-open‘ );
-
-
if( isOpen === ‘true‘ ) {
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this._closeMenu( item );
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submenu.setAttribute( ‘data-open‘, ‘false‘ );
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}
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else {
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this._openMenu( item );
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this.current = items.indexOf( item );
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submenu.setAttribute( ‘data-open‘, ‘true‘ );
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}
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}
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},
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arget="_blank" href="/topic/1132907">前端UI分享</a>
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-
_positionMenu : function( el ) {
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// checking where‘s more space left in the viewport: above or below the element
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var vH = getViewportH(),
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ot = getOffset(el),
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spaceUp = ot.top ,
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spaceDown = vH - spaceUp - el.offsetHeight;
-
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return ( spaceDown <= spaceUp ? ‘top‘ : ‘bottom‘ );
-
}
-
}
-
-
// add to global namespace
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window.cbpTooltipMenu = cbpTooltipMenu;
-
-
window );
javascript和css实现垂直方向自适应的三角提示菜单
原文：http://blog.csdn.net/ariss123/article/details/39294385
