HTML元素的默认CSS设置

• /**default css style**/
• html, address,
• blockquote,
• body, dd, div,
• dl, dt, fieldset, form,
• frame, frameset,
• h1, h2, h3, h4,
• h5, h6, noframes,
• ol, p, ul, center,
• dir, hr, menu, pre { display: block }
• li { display: list-item }
• head { display: none }
• table { display: table }
• tr { display: table-row }
• thead { display: table-header-group }
• tbody { display: table-row-group }
• tfoot { display: table-footer-group }
• col { display: table-column }
• colgroup { display: table-column-group }
• td, th { display: table-cell; }
• caption { display: table-caption }
• th { font-weight: bolder; text-align: center }
• caption { text-align: center }
• body { margin: 8px; line-height: 1.12 }
• h1 { font-size: 2em; margin: .67em 0 }
• h2 { font-size: 1.5em; margin: .75em 0 }
• h3 { font-size: 1.17em; margin: .83em 0 }
• h4, p,
• blockquote, ul,
• fieldset, form,
• ol, dl, dir,
• menu { margin: 1.12em 0 }
• h5 { font-size: .83em; margin: 1.5em 0 }
• h6 { font-size: .75em; margin: 1.67em 0 }
• h1, h2, h3, h4,
• h5, h6, b,strong { font-weight: bolder }
• blockquote { margin-left: 40px; margin-right: 40px }
• i, cite, em,
• var, address { font-style: italic }
• pre, tt, code,
• kbd, samp { font-family: monospace }
• pre { white-space: pre }
• button, textarea,
• input, object,
• select { display:inline-block; }
• big { font-size: 1.17em }
• small, sub, sup { font-size: .83em }
• sub { vertical-align: sub }
• sup { vertical-align: super }
• table { border-spacing: 2px; }
• thead, tbody,
• tfoot { vertical-align: middle }
• td, th { vertical-align: inherit }
• s, strike, del { text-decoration: line-through }
• hr { border: 1px inset }
• ol, ul, dir,
• menu, dd { margin-left: 40px }
• ol { list-style-type: decimal }
• ol ul, ul ol,
• ul ul, ol ol { margin-top: 0; margin-bottom: 0 }
• u, ins { text-decoration: underline }
• br:before { content: ""A" }
• :before, :after { white-space: pre-line }
• center { text-align: center }
• abbr, acronym { font-variant: small-caps; letter-spacing: 0.1em }
• :link, :visited { text-decoration: underline }
• :focus { outline: thin dotted invert }
• /* Begin bidirectionality settings (do not change) */
• BDO[DIR="ltr"] { direction: ltr; unicode-bidi: bidi-override }
• BDO[DIR="rtl"] { direction: rtl; unicode-bidi: bidi-override }
• *[DIR="ltr"] { direction: ltr; unicode-bidi: embed }
• *[DIR="rtl"] { direction: rtl; unicode-bidi: embed }
• @media print {
• h1 { page-break-before: always }
• h1, h2, h3,
• h4, h5, h6 { page-break-after: avoid }
• ul, ol, dl { page-break-before: avoid }