文字溢出省略

.txt{font-size: 12px;color: #666666;width:170px;height:2.8em;line-height:1.4em;position:relative;overflow:hidden;} 
.txt::after{content:"...";font-weight:bold;position:absolute;bottom:0;right:0;padding:0 20px 1px 45px;background:url(http://css88.b0.upaiyun.com/css88/2014/09/ellipsis_bg.png) repeat-y;}

 .txt{
 overflow: hidden;
 text-overflow: ellipsis;
 white-space: nowrap;
}