reset.css
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
html { font-family: sans-serif; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; } body { margin: 0; } article, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section, summary { display: block; } audio, canvas, progress, video { display: inline-block; vertical-align: baseline; } audio:not([controls]) { display: none; height: 0; } [hidden], template { display: none; } a { background: transparent; } a:active, a:hover { outline: 0; } abbr[title] { border-bottom: 1px dotted; } b, strong { font-weight: bold; } dfn { font-style: italic; } h1 { margin: .67em 0; font-size: 2em; } mark { color: #000; background: #ff0; } small { font-size: 80%; } sub, sup { position: relative; font-size: 75%; line-height: 0; vertical-align: baseline; } sup { top: -.5em; } sub { bottom: -.25em; } img { border: 0; } svg:not(:root) { overflow: hidden; } figure { margin: 1em 40px; } hr { height: 0; -moz-box-sizing: content-box; box-sizing: content-box; } pre { overflow: auto; } code, kbd, pre, samp { font-family: monospace, monospace; font-size: 1em; } button, input, optgroup, select, textarea { margin: 0; font: inherit; color: inherit; } button { overflow: visible; } button, select { text-transform: none; } button, html input[type="button"], input[type="reset"], input[type="submit"] { -webkit-appearance: button; cursor: pointer; } button[disabled], html input[disabled] { cursor: default; } button::-moz-focus-inner, input::-moz-focus-inner { padding: 0; border: 0; } input { line-height: normal; } input[type="checkbox"], input[type="radio"] { box-sizing: border-box; padding: 0; } input[type="number"]::-webkit-inner-spin-button, input[type="number"]::-webkit-outer-spin-button { height: auto; } input[type="search"] { -webkit-box-sizing: content-box; -moz-box-sizing: content-box; box-sizing: content-box; -webkit-appearance: textfield; } input[type="search"]::-webkit-search-cancel-button, input[type="search"]::-webkit-search-decoration { -webkit-appearance: none; } fieldset { padding: .35em .625em .75em; margin: 0 2px; border: 1px solid #c0c0c0; } legend { padding: 0; border: 0; } textarea { overflow: auto; } optgroup { font-weight: bold; } table { border-spacing: 0; border-collapse: collapse; } td, th { padding: 0; } @media print { * { color: #000 !important; text-shadow: none !important; background: transparent !important; box-shadow: none !important; } a, a:visited { text-decoration: underline; } a[href]:after { content: " (" attr(href) ")"; } abbr[title]:after { content: " (" attr(title) ")"; } a[href^="javascript:"]:after, a[href^="#"]:after { content: ""; } pre, blockquote { border: 1px solid #999; page-break-inside: avoid; } thead { display: table-header-group; } tr, img { page-break-inside: avoid; } img { max-width: 100% !important; } p, h2, h3 { orphans: 3; widows: 3; } h2, h3 { page-break-after: avoid; } select { background: #fff !important; } .navbar { display: none; } .table td, .table th { background-color: #fff !important; } .btn > .caret, .dropup > .btn > .caret { border-top-color: #000 !important; } .label { border: 1px solid #000; } .table { border-collapse: collapse !important; } .table-bordered th, .table-bordered td { border: 1px solid #ddd !important; } }