CSS初始化示例代码/*css reset www.admin10000.com*/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; }body{background:#fff;color:#555;font-size:14px;font-family:Verdana, Arial, Helvetica, sans-serif; }td,th,caption{font-size:14px; }h1, h2, h3, h4, h5, h6{font-weight:normal;font-size:100%; }address, caption, cite, code, dfn, em, strong, th, var{font-style:normal;font-weight:normal;}a{color:#555;text-decoration:none; }a:hover{text-decoration:underline; }img{border:none; }ol,ul,li{list-style:none; }input, textarea, select, button{font:14px Verdana,Helvetica,Arial,sans-serif; }table{border-collapse:collapse; }html{overflow-y:scroll;}
/*css common*/.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden;}.clearfix{*zoom:1; }

二、第二种

/*Eric Meyer's Reset CSS v2.0 - http://cssreset.com*/html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{border:0;font-size:100%;font:inherit;vertical-align:baseline;margin:0;padding:0}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:none}table{border-collapse:collapse;border-spacing:0}

三、

/** * Eric Meyer's Reset CSS v2.0 (http://meyerweb.com/eric/tools/css/reset/) * http://cssreset.com*/html, body, div, span, applet, object, iframe,h1, h2, h3, h4, h5, h6, p, blockquote, pre,a, abbr, acronym, address, big, cite, code,del, dfn, em, img, ins, kbd, q, s, samp,small, strike, strong, sub, sup, tt, var,b, u, i, center,dl, dt, dd, ol, ul, li,fieldset, form, label, legend,table, caption, tbody, tfoot, thead, tr, th, td,article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary,time, mark, audio, video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline;}/*HTML5 display-role reset for older browsers*/article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section{display:block;}body{line-height:1;}ol, ul{list-style:none;}blockquote, q{quotes:none;}blockquote:before, blockquote:after,q:before, q:after{content:'';content:none;}table{border-collapse:collapse;border-spacing:0;}