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; */ } h1,h2,h3,h4,h5,h6,em,i { font-weight:100; font-style:normal; } ul,ol,li { list-style-type:none; } a { color:#666; text-decoration:none; outline:0; } a:hover { text-decoration:none; }
不同浏览器对默认样式的解析是不一样的,所以我们需要一个统一的初始化样式来开始我们的项目。