/*======== 全局 ========*/body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, p, blockquote, th, td { margin:0; padding:0; }body { font-size:12px; color:#666; font-family:Verdana, Microsoft YaHei, Simsun; background:#fff; line-height:24px; }fieldset, img { border:0; }ol, ul { list-style:none; }h1, h2, h3, h4, h5, h6{ font-size:100%; }em { font-style:normal; }input, button, select, textarea { outline:none; } textarea { resize:none; } //禁用了文本的拖拉，尤其在谷歌下p{ text-align:justify; text-justify:distribute;} //为了使文本段落左右两边对齐/*======== Link ========*/a { color: #666; text-decoration:none; }a:hover { color: #f60; text-decoration:none; }腾讯QQ官网(http://www.qq.com)样式初始化body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,select{margin:0;padding:0}body{font:12px"宋体","Arial Narrow",HELVETICA;background:#fff;-webkit-text-size-adjust:100%;}a{color:#2d374b;text-decoration:none}a:hover{color:#cd0200;text-decoration:underline}em{font-style:normal}li{list-style:none}img{border:0;vertical-align:middle}table{border-collapse:collapse;border-spacing:0}p{word-wrap:break-word}新浪官网(http://www.sina.com.cn/)样式初始化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;}淘宝官网(http://www.taobao.com/)样式初始化（淘宝的样式是经过压缩的，我自己拷下来格式化过的）body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td { margin:0; padding:0; }body, button, input, select, textarea { font:12px/1.5tahoma, arial, \5b8b\4f53; }h1, h2, h3, h4, h5, h6{ font-size:100%; }address, cite, dfn, em, var { font-style:normal; }code, kbd, pre, samp { font-family:couriernew, courier, monospace; }small{ font-size:12px; }ul, ol { list-style:none; }a { text-decoration:none; }a:hover { text-decoration:underline; }sup { vertical-align:text-top; }sub{ vertical-align:text-bottom; }legend { color:#000; }fieldset, img { border:0; }button, input, select, textarea { font-size:100%; }table { border-collapse:collapse; border-spacing:0; }网易官网(http://www.163.com/)样式初始化html {overflow-y:scroll;}body {margin:0; padding:29px00; font:12px"\5B8B\4F53",sans-serif;background:#ffffff;}div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,blockquote,p{padding:0; margin:0;}table,td,tr,th{font-size:12px;}li{list-style-type:none;}img{vertical-align:top;border:0;}ol,ul {list-style:none;}h1,h2,h3,h4,h5,h6{font-size:12px; font-weight:normal;}address,cite,code,em,th {font-weight:normal; font-style:normal;}另外一种格式 化body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,legend,buttonform,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;}CSS - 样式初始化
原文地址：https://www.cnblogs.com/allen2333/p/9011688.html