为了消除各浏览器对css默认的设置，保持网页在各浏览器中的外观保持一致，初始化css就显得非常必要了！很多时候出现的样式不兼容问题，都可以通过css初始化代码来解决。下面列举常用的一些方案：
1.最耗资源的，最简单的
* { padding: 0; margin: 0; border: 0; }
2.选择性初始化举例（综合）
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,legend,button form,fieldset,input,textarea,p,blockquote,th,td { padding: 0; margin: 0; } /* 酌情修改 */ body { background:#fff;color:#333;font-size:12px; margin-top:5px;font-family:"SimSun","宋体","Arial Narrow"; } /* 短引用的内容可取值：‘‘或"" */ q:before,q:after {content:”;} /* 缩写，图片等无边框 */ fieldset,img,abbr,acronym {border: 0 none;} abbr,acronym {font-variant: normal;} legend {color:#000;} /* 清除特殊标记的字体和字号 */ address,caption,cite,code,dfn,em,strong,th,var { font-weight: normal; font-style: normal; } /* 上下标 */ sup {vertical-align: text-top;} sub {vertical-align: text-bottom;} /* 设置表格的边框被合并为一个单一的边框, 指定分隔边框模型中单元格边界之间的距离为0*/ table { border-collapse: collapse; border-spacing: 0; } /* 表格标题及内容居左显示 */ caption,th {text-align: left;} input,img,select {vertical-align:middle;} /* 清除列表样式 */ ol,ul {list-style: none;} /* 输入控件字体 */ input,button,textarea,select,optgroup,option { font-family:inherit; font-size:inherit; font-style:inherit; font-weight:inherit; } /* 标题元素样式清除 */ h1,h2,h3,h4,h5,h6 { font-weight: normal; font-size: 100%; } /* 链接样式，颜色可酌情修改 */ del,ins,a {text-decoration:none;} a:link {color:#009;} a:visited {color:#800080;} a:hover,a:active,a:focus {color:#c00; text-decoration:underline;} /* 鼠标样式 */ input[type="submit"] {cursor: pointer;} button {cursor: pointer;} input::-moz-focus-inner { border: 0; padding: 0;} .clear {clear:both;}
3.sina的
/* 全局样式 */ body,ul,ol,li,p,h1,h2,h3,h4,h5,h6,form,fieldset,table,td,img,div{ margin:0;padding:0;border:0; } body{ background:#fff;color:#333;font-size:12px; margin-top:5px;font-family:"SimSun","宋体","Arial Narrow"; } ul,ol{ list-style-type:none; } select,input,img,select{ vertical-align:middle; } a{text-decoration:none;} a:link{color:#009;} a:visited{color:#800080;} a:hover,a:active,a:focus{color:#c00;text-decoration:underline;}
4.yahoo的
html { background: none repeat scroll 0 0 #FFFFFF; color: #000000; } body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td { margin: 0; padding: 0; } table { border-collapse: collapse; border-spacing: 0; } fieldset, img { border: 0 none; } address, caption, cite, code, dfn, em, strong, th, var { font-style: normal; font-weight: normal; } li { list-style: none outside none; } caption, th { text-align: left; } h1, h2, h3, h4, h5, h6 { font-size: 100%; font-weight: normal; } q:before, q:after { content: ""; } abbr, acronym { border: 0 none; font-variant: normal; } sup { vertical-align: text-top; } sub { vertical-align: text-bottom; } input, textarea, select { font-family: inherit; font-size: inherit; font-weight: inherit; } input, textarea, select { } legend { color: #000000; } body { font: 13px/1.231 arial,helvetica,clean,sans-serif; } select, input, button, textarea { font: 99% arial,helvetica,clean,sans-serif; } table { font-size: inherit; } pre, code, kbd, samp, tt { font-family: monospace; line-height: 100%; } a { text-decoration: none; } a:hover, a:focus { text-decoration: underline; } strong { font-weight: bold; } input[type="submit"] { cursor: pointer; } button { cursor: pointer; }
5.博客园的
/*version: 2.7.0*/ html,body{color:#000;background:#FFF;} body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td{ margin:0;padding:0; } table{border-collapse:collapse;border-spacing:0;} fieldset,img{border:0;} address,caption,cite,code,dfn,em,strong,th,var,optgroup{ font-style:inherit;font-weight:inherit; } del,ins{text-decoration:none;} li{list-style:none;} caption,th{text-align:left;} h1,h2,h3,h4,h5,h6{ font-size:100%;font-weight:normal;} q:before,q:after{content:‘‘;} abbr,acronym{border:0;font-variant:normal;} sup{vertical-align:baseline;} sub{vertical-align:baseline;} legend{color:#000;} input,button,textarea,select,optgroup,option{ font-family:inherit;font-size:inherit;font-style:inherit;font-weight:inherit; } input,button,textarea,select{*font-size:100%;} .clear{clear:both;} input::-moz-focus-inner{ border: 0;padding: 0;} /*added*/ input[type=button],input[type=submit] {-webkit-appearance: button;}
轉載自：http://www.cnblogs.com/xiangzi888/archive/2011/09/21/2184442.html