html, body, ul, ol, li, dd, dt, dl, div, h1, h2, h3, h4, h5, h6, span, label, input, p, i, a { margin: 0px; padding: 0px; } a{ list-style: none; } img{ border:0; }
默认清除样式
原文：https://www.cnblogs.com/hyx626/p/10277315.html
