Question

关于*{margin:0px;padding:0px}

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
有必要写这么多么？有必要连html也加入吗

Answer 1

尽量少用*，影响网站速度
最好body,div,p,span,img,{margin:0;padding:0};
img{border:none}
用到什么写什么