CSS 初始化
一、normallize.css(github的一个项目 点击进入链接
/*! normalize.css v8.0.0 | MIT License | github.com/necolas/normalize.css */ /* Document ========================================================================== */ /** * 1. Correct the line height in all browsers. * 2. Prevent adjustments of font size after orientation changes in iOS. */ html { line-height: 1.15; /* 1 */ -webkit-text-size-adjust: 100%; /* 2 */ } /* Sections ========================================================================== */ /** * Remove the margin in all browsers. */ body { margin: 0; } /** * Correct the font size and margin on `h1` elements within `section` and * `article` contexts in Chrome, Firefox, and Safari. */ h1 { font-size: 2em; margin: 0.67em 0; } /* Grouping content ========================================================================== */ /** * 1. Add the correct box sizing in Firefox. * 2. Show the overflow in Edge and IE. */ hr { box-sizing: content-box; /* 1 */ height: 0; /* 1 */ overflow: visible; /* 2 */ } /** * 1. Correct the inheritance and scaling of font size in all browsers. * 2. Correct the odd `em` font sizing in all browsers. */ pre { font-family: monospace, monospace; /* 1 */ font-size: 1em; /* 2 */ } /* Text-level semantics ========================================================================== */ /** * Remove the gray background on active links in IE 10. */ a { background-color: transparent; } /** * 1. Remove the bottom border in Chrome 57- * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari. */ abbr[title] { border-bottom: none; /* 1 */ text-decoration: underline; /* 2 */ text-decoration: underline dotted; /* 2 */ } /** * Add the correct font weight in Chrome, Edge, and Safari. */ b, strong { font-weight: bolder; } /** * 1. Correct the inheritance and scaling of font size in all browsers. * 2. Correct the odd `em` font sizing in all browsers. */ code, kbd, samp { font-family: monospace, monospace; /* 1 */ font-size: 1em; /* 2 */ } /** * Add the correct font size in all browsers. */ small { font-size: 80%; } /** * Prevent `sub` and `sup` elements from affecting the line height in * all browsers. */ sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; } sub { bottom: -0.25em; } sup { top: -0.5em; } /* Embedded content ========================================================================== */ /** * Remove the border on images inside links in IE 10. */ img { border-style: none; } /* Forms ========================================================================== */ /** * 1. Change the font styles in all browsers. * 2. Remove the margin in Firefox and Safari. */ button, input, optgroup, select, textarea { font-family: inherit; /* 1 */ font-size: 100%; /* 1 */ line-height: 1.15; /* 1 */ margin: 0; /* 2 */ } /** * Show the overflow in IE. * 1. Show the overflow in Edge. */ button, input { /* 1 */ overflow: visible; } /** * Remove the inheritance of text transform in Edge, Firefox, and IE. * 1. Remove the inheritance of text transform in Firefox. */ button, select { /* 1 */ text-transform: none; } /** * Correct the inability to style clickable types in iOS and Safari. */ button, [type="button"], [type="reset"], [type="submit"] { -webkit-appearance: button; } /** * Remove the inner border and padding in Firefox. */ button::-moz-focus-inner, [type="button"]::-moz-focus-inner, [type="reset"]::-moz-focus-inner, [type="submit"]::-moz-focus-inner { border-style: none; padding: 0; } /** * Restore the focus styles unset by the previous rule. */ button:-moz-focusring, [type="button"]:-moz-focusring, [type="reset"]:-moz-focusring, [type="submit"]:-moz-focusring { outline: 1px dotted ButtonText; } /** * Correct the padding in Firefox. */ fieldset { padding: 0.35em 0.75em 0.625em; } /** * 1. Correct the text wrapping in Edge and IE. * 2. Correct the color inheritance from `fieldset` elements in IE. * 3. Remove the padding so developers are not caught out when they zero out * `fieldset` elements in all browsers. */ legend { box-sizing: border-box; /* 1 */ color: inherit; /* 2 */ display: table; /* 1 */ max-width: 100%; /* 1 */ padding: 0; /* 3 */ white-space: normal; /* 1 */ } /** * Add the correct vertical alignment in Chrome, Firefox, and Opera. */ progress { vertical-align: baseline; } /** * Remove the default vertical scrollbar in IE 10+. */ textarea { overflow: auto; } /** * 1. Add the correct box sizing in IE 10. * 2. Remove the padding in IE 10. */ [type="checkbox"], [type="radio"] { box-sizing: border-box; /* 1 */ padding: 0; /* 2 */ } /** * Correct the cursor style of increment and decrement buttons in Chrome. */ [type="number"]::-webkit-inner-spin-button, [type="number"]::-webkit-outer-spin-button { height: auto; } /** * 1. Correct the odd appearance in Chrome and Safari. * 2. Correct the outline style in Safari. */ [type="search"] { -webkit-appearance: textfield; /* 1 */ outline-offset: -2px; /* 2 */ } /** * Remove the inner padding in Chrome and Safari on macOS. */ [type="search"]::-webkit-search-decoration { -webkit-appearance: none; } /** * 1. Correct the inability to style clickable types in iOS and Safari. * 2. Change font properties to `inherit` in Safari. */ ::-webkit-file-upload-button { -webkit-appearance: button; /* 1 */ font: inherit; /* 2 */ } /* Interactive ========================================================================== */ /* * Add the correct display in Edge, IE 10+, and Firefox. */ details { display: block; } /* * Add the correct display in all browsers. */ summary { display: list-item; } /* Misc ========================================================================== */ /** * Add the correct display in IE 10+. */ template { display: none; } /** * Add the correct display in IE 10. */ [hidden] { display: none; }
二、.其他的一些初始化(借鉴)
article, aside, details, figcaption, figure, footer, header, main, nav, section, summary { display: block } audio, canvas, video { display: inline-block; *display: inline; *zoom: 1 } audio:not([controls]) { display: none; height: 0 } [hidden] { display: none } html { font-size: 100%; -ms-text-size-adjust: 100%; -webkit-text-size-adjust: 100% } html, button, input, select, textarea { font-family: sans-serif } body { margin: 0 } a:active, a:hover { outline: 0 } h1 { font-size: 2em; margin: 0.67em 0 } h2 { font-size: 1.5em; margin: 0.83em 0 } h3 { font-size: 1.17em; margin: 1em 0 } h4 { font-size: 1em; margin: 1.33em 0 } h5 { font-size: 0.83em; margin: 1.67em 0 } h6 { font-size: 0.67em; margin: 2.33em 0 } abbr[title] { border-bottom: 1px dotted } b, strong { font-weight: bold } blockquote { margin: 1em 40px } dfn { font-style: italic } hr { -webkit-box-sizing: content-box; box-sizing: content-box; height: 0 } mark { background: #ff0; color: #000 } p, pre { margin: 1em 0 } code, kbd, pre, samp { font-family: monospace, serif; _font-family: 'courier new', monospace; font-size: 1em } pre { white-space: pre; white-space: pre-wrap; word-wrap: break-word } q { quotes: none } q:before, q:after { content: ''; content: none } small { font-size: 80% } sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline } sup { top: -0.5em } sub { bottom: -0.25em } dl, menu, ol, ul { margin: 1em 0 } dd { margin: 0 0 0 40px } menu, ol, ul { padding: 0 0 0 40px } nav ul, nav ol { list-style: none; list-style-image: none } img { border: 0; -ms-interpolation-mode: bicubic } svg:not(:root) { overflow: hidden; _zoom: 1 } figure { margin: 0 } form { margin: 0 } fieldset { border: 1px solid #c0c0c0; margin: 0 2px; padding: 0.35em 0.625em 0.75em } legend { border: 0; padding: 0; white-space: normal; *margin-left: -7px } button, input, select, textarea { font-size: 100%; margin: 0; vertical-align: baseline; *vertical-align: middle } button, input { line-height: normal } button, select { text-transform: none } button, html input[type="button"], input[type="reset"], input[type="submit"] { -webkit-appearance: button; cursor: pointer; *overflow: visible; border-radius: 0 } button[disabled], html input[disabled] { cursor: default } input[type="checkbox"], input[type="radio"] { -webkit-box-sizing: border-box; box-sizing: border-box; padding: 0; *height: 13px; *width: 13px } input[type="search"] { -webkit-appearance: textfield; -webkit-box-sizing: content-box; box-sizing: content-box } input[type="search"]::-webkit-search-cancel-button, input[type="search"]::-webkit-search-decoration { -webkit-appearance: none } button::-moz-focus-inner, input::-moz-focus-inner { border: 0; padding: 0 } textarea { overflow: auto; vertical-align: top } table { border-collapse: collapse; border-spacing: 0 } body { font: 14px/1.5 "Helvetica Neue", Helvetica, Arial, "Microsoft Yahei", "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", sans-serif; color: #333; background-color: #fff; min-width: 1226px } a { color: #757575; text-decoration: none } a:hover { color: #ff6700; text-decoration: none } .clearfix { *zoom: 1 } .clearfix:before, .clearfix:after { content: " ";display:table}.clearfix:after{clear:both}.hide{display:none !important}.ir{display:block;text-align:left;text-indent:-9999em;overflow:hidden;_zoom:1}.sep,.ndash{margin:0 .25em; font-family: sans-serif } .container { width: 1226px; *zoom: 1; margin-right: auto; margin-left: auto } .container:before, .container:after { content: ""; display: table } .container:after { clear: both } .row { margin-left: -14px; _margin-left: 0; *zoom: 1 } .row:before, .row:after { content: ""; display: table } .row:after { clear: both } .page-main { background: #f5f5f5 } .span1, .span2, .span3, .span4, .span5, .span6, .span7, .span8, .span9, .span10, .span11, .span12, .span13, .span14, .span15, .span16, .span17, .span18, .span19, .span20 { float: left; margin-left: 14px; min-height: 1px } .span1 { width: 48px } .span2 { width: 110px } .span3 { width: 172px } .span4 { width: 234px } .span5 { width: 296px } .span6 { width: 358px } .span7 { width: 420px } .span8 { width: 482px } .span9 { width: 544px } .span10 { width: 606px } .span11 { width: 668px } .span12 { width: 730px } .span13 { width: 792px } .span14 { width: 854px } .span15 { width: 916px } .span16 { width: 978px } .span17 { width: 1040px } .span18 { width: 1102px } .span19 { width: 1164px } .span20 { width: 1226px } .span-first { _margin-left: 0 } .offset1 { margin-left: 48px } .offset2 { margin-left: 110px } .offset3 { margin-left: 172px } .offset4 { margin-left: 234px } .offset5 { margin-left: 296px } .offset6 { margin-left: 358px } .offset7 { margin-left: 420px } .offset8 { margin-left: 482px } .offset9 { margin-left: 544px } .offset10 { margin-left: 606px } .offset11 { margin-left: 668px } .offset12 { margin-left: 730px } .offset13 { margin-left: 792px } .offset14 { margin-left: 854px } .offset15 { margin-left: 916px } .offset16 { margin-left: 978px } .offset17 { margin-left: 1040px } .offset18 { margin-left: 1102px } .offset19 { margin-left: 1164px } .offset20 { margin-left: 1226px }
待补充--
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