方案一 html, body, div, span,applet, object, iframe, table, caption, tbody, tfoot, thead, tr,th, td, del, dfn, em, font, img, ins, kbd, q, s, samp, small,strike, strong, sub, sup, tt, var, h1, h2, h3, h4, h5, h6,p, blockquote, pre, a, abbr, acronym, address, big,cite, code, dl, dt, dd, ol, ul, li, fieldset, form, label,legend { vertical-align: baselinebaseline; font-family: inherit; font-weight: inherit; font-style: inherit; font-size: 100%; outline: 0; padding: 0; margin: 0; border: 0; } :focus { outline: 0; } body { background: white; line-height: 1; color: black; } ol, ul { list-style: none; } table { border-collapse: separate; border-spacing: 0; } caption, th, td { font-weight: normal; text-align: left; } blockquote:before,blockquote:after, q:before, q:after { content: ""; } blockquote, q { quotes: "" ""; } 方案二:Yahoo’s(YUI) CSS Reset body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre, form,fieldset,input,textarea,p,blockquote,th,td{ padding: 0; margin: 0; } table { border-collapse: collapse; border-spacing: 0; } fieldset,img { border: 0; } address,caption,cite,code,dfn,em,strong,th,var{ font-weight: normal; font-style: normal; } ol,ul { list-style: none; } caption,th { text-align: left; } h1,h2,h3,h4,h5,h6 { font-weight: normal; font-size: 100%; } q:before,q:after { content:''; } abbr,acronym { border:0; } 方案三 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; outline:none; } html { height:101%; } /* 总是显示滚动条 */ body { font-size:62.5%; line-height:1; font-family:Arial, Tahoma, Verdana, sans-serif; } article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display:block; } img { border:0; max-width:100%; } a { text-decoration:none; } a:hover { text-decoration:underline; } ol, ul { list-style:none; } blockquote, q { quotes:none; } blockquote:before, blockquote:after, q:before, q:after { content:""; content:none; } strong { font-weight:bold; } input { outline:none; } table { border-collapse:collapse; border-spacing:0; }