复制代码代码如下:@charset “utf-8”; /*element*/ html{direction:ltr;*overflow-y:scroll;} body{height:100%;background:#fff;} body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,button,select,option,textarea,p,blockquote,th,td{padding:0;margin:0;font:12px/20px arial, helvetica, verdana, tahoma,