经典的css样式初始化代码

/* CSS Document */html, body, div, span, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,abbr, address, cite, code,del, dfn, em, img, ins,kbd, q, samp,small, strong, sub, sup, var,b, i,dl, dt, dd, ol, ul, li,fieldset, form, label, legend,table, caption, tbody, tfoot,thead,tr, th, td,article, aside, canvas, details, figcaption, figure, footer, header, hgroup, menu, nav, section, summary,time, mark, audio, video { margin:0; padding:0; border:0; outline:0; font-size:100%; vertical-align:baseline; background:transparent; outline-style:none;/*FF*/ }body { line-height:1;} a{ margin:0; padding:0; border:0; font-size:100%; vertical-align:baseline; background:transparent; }a:hover,a:focus{ text-decoration:none; bblr:expression(this.onFocus=this.blur());/*IE*/ outline-style:none;/*FF*/ }table { border-collapse:collapse; border-spacing:0;} input, select { vertical-align:middle;}/*css为clearfix，清除浮动*/.clearfix::before,.clearfix::after{ content: ""; height: 0; line-height: 0; display: block; visibility: hidden; clear: both;}.clearfix:after{clear:both;} .clearfix{ *zoom:1;/*IE/7/6*/}