css之去除html标签默认的外边距margin和内边距padding

原文地址:http://www.cnblogs.com/yjzhu/archive/2012/11/05/2755095.html

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,hr,button,article,aside,
details,figcaption,figure,footer,header,hgroup,menu,nav,section {
    margin:0;
    padding:0;
 }