Web開發者不容錯過的20段CSS代碼

1. CSS Resets

網絡上關於CSS重置的代碼非常多。本段代碼是根據Eric Meyer’s reset codes進行改編的，裏面包含一點響應式圖片和所有核心元素的邊界框設置，這樣就可以保持頁邊距和填充可以很好地對齊。

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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; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; } html { height: 101%; } body { font-size: 62.5%; line-height: 1; font-family: Arial, Tahoma, sans-serif; } article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; } ol, ul { list-style: none; } blockquote, q { quotes: none; } blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; } strong { font-weight: bold; } table { border-collapse: collapse; border-spacing: 0; } img { border: 0; max-width: 100%; } p { font-size: 1.2em; line-height: 1.0em; color: #333; }

2.經典的CSS Clearfix

這個clearfix代碼已在Web開發者之間廣泛流傳，這段類選擇器要應用到持有浮動元素的容器中，確保後面的內容都不會浮動，但會被下推和清除。

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.clearfix:after { content: "."; display: block; clear: both; visibility: hidden; line-height: 0; height: 0; } .clearfix { display: inline-block; } <font></font> html[xmlns] .clearfix { display: block; } * html .clearfix { height: 1%; }

3.升級版的Clearfix

在表現上，新版本和經典版本不存在什麼差異，這些類可以有效地清除所有floats，但它們只兼容現代瀏覽器和傳統的IE 6-8。

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.clearfix:before, .container:after { content: ""; display: table; }<font></font> .clearfix:after { clear: both; } /* IE 6/7 */ .clearfix { zoom: 1; }

4. Cross-Browser Transparency

CSS3裏的許多屬性都與瀏覽器相兼容，但也有特例，比如opacity，需要對它進行一些更新纔可以。附加過濾屬性可以兼容任何老版的IE瀏覽器。

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.transparent{ filter: alpha(opacity=50);/* internet explorer */ -khtml-opacity: 0.5;     /* khtml, old safari */ -moz-opacity: 0.5;      /* mozilla, netscape */ opacity: 0.5;          /* fx, safari, opera */ }

源碼地址： http://perishablepress.com/cross-browser-transparency-via-css/

5. CSS Blockquote模板

這段代碼主要用在頁面上進行分離引用或複製內容，並且給頁面文字提供了默認樣式。

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blockquote { background: #f9f9f9;< border-left: 10pxsolid#ccc; margin: 1.5em10px; padding: .5em10px; quotes: "\201C""\201D""\2018""\2019"; } blockquote:before { color: #ccc; content: open-quote; font-size: 4em; line-height: .1em; margin-right: .25em; vertical-align: -.4em; } blockquote p { display: inline; }

查看源碼： http://css-tricks.com/snippets/css/simple-and-nice-blockquote-styling/

6. 個性化的圓角代碼

許多CSS開發者都非常熟悉圓角語法，但如何爲每個角設置不同的值？不如看看下面這段代碼吧！

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#container { -webkit-border-radius: 4px3px6px10px; -moz-border-radius: 4px3px6px10px; -o-border-radius: 4px3px6px10px; border-radius: 4px3px6px10px; } /* alternative syntax broken into each line */ #container { -webkit-border-top-left-radius: 4px; -webkit-border-top-rightright-radius: 3px; -webkit-border-bottom-rightright-radius: 6px; -webkit-border-bottom-left-radius: 10px; -moz-border-radius-topleft: 4px; -moz-border-radius-topright: 3px; -moz-border-radius-bottomright: 6px; -moz-border-radius-bottomleft: 10px; }

7. 一般媒體查詢

這是一段非常好的模板，用於各種零零碎碎的媒體查詢，在移動設備上也可以使用，這段代碼甚至可以通過使用min-device-pixel-ratio引用到視網膜設備上。

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/* Smartphones (portrait and landscape) ----------- */ @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { /* Styles */ } /* Smartphones (landscape) ----------- */ @media only screenand (min-width : 321px) { /* Styles */ } /* Smartphones (portrait) ----------- */ @media only screenand (max-width : 320px) { /* Styles */ } /* iPads (portrait and landscape) ----------- */ @media only screenand (min-device-width : 768px) and (max-device-width : 1024px) { /* Styles */ } <font></font> /* iPads (landscape) ----------- */ @media only screenand (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) { /* Styles */ } /* iPads (portrait) ----------- */ @media only screenand (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) { /* Styles */ }   /* Desktops and laptops ----------- */ @media only screenand (min-width : 1224px) { /* Styles */ } /* Large screens ----------- */ @media only screenand (min-width : 1824px) { /* Styles */ } /* iPhone 4 ----------- */ @media only screenand (-webkit-min-device-pixel-ratio:1.5), only screenand (min-device-pixel-ratio:1.5) { /* Styles */ }

源碼地址： http://css-tricks.com/snippets/css/media-queries-for-standard-devices/

8. 現代字體棧

在新網頁上設計屬於自己的字體棧還是件比較困難的事情，希望下面這段代碼能給你帶來啓發和開發模板，關於更多字體棧源碼，你可以訪問CSS Font Stacks。

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/* Times New Roman-based serif */ font-family: Cambria, "Hoefler Text", Utopia, "Liberation Serif", "Nimbus Roman No9 L Regular", Times, "Times New Roman", serif; /* A modern Georgia-based serif */ font-family: Constantia, "Lucida Bright", Lucidabright, "Lucida Serif", Lucida, "DejaVu Serif,""Bitstream Vera Serif", "Liberation Serif", Georgia, serif; /*A more traditional Garamond-based serif */ font-family: "Palatino Linotype", Palatino, Palladio, "URW Palladio L", "Book Antiqua", Baskerville, "Bookman Old Style", "Bitstream Charter", "Nimbus Roman No9 L", Garamond, "Apple Garamond", "ITC Garamond Narrow", "New Century Schoolbook", "Century Schoolbook", "Century Schoolbook L", Georgia, serif; /*The Helvetica/Arial-based sans serif */ font-family: Frutiger, "Frutiger Linotype", Univers, Calibri, "Gill Sans", "Gill Sans MT", "Myriad Pro", Myriad, "DejaVu Sans Condensed", "Liberation Sans", "Nimbus Sans L", Tahoma, Geneva, "Helvetica Neue", Helvetica, Arial, sans-serif; /*The Verdana-based sans serif */ font-family: Corbel, "Lucida Grande", "Lucida Sans Unicode", "Lucida Sans", "DejaVu Sans", "Bitstream Vera Sans", "Liberation Sans", Verdana, "Verdana Ref", sans-serif; /*The Trebuchet-based sans serif */ font-family: "Segoe UI", Candara, "Bitstream Vera Sans", "DejaVu Sans", "Bitstream Vera Sans", "Trebuchet MS", Verdana, "Verdana Ref", sans-serif; /*The heavier “Impact” sans serif */ font-family: Impact, Haettenschweiler, "Franklin Gothic Bold", Charcoal, "Helvetica Inserat", "Bitstream Vera Sans Bold", "Arial Black", sans-serif; /*The monospace */ font-family: Consolas, "Andale Mono WT", "Andale Mono", "Lucida Console", "Lucida Sans Typewriter", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Liberation Mono", "Nimbus Mono L", Monaco, "Courier New", Courier, monospace;

源碼地址： http://www.sitepoint.com/eight-definitive-font-stacks/

9. 自定義文本選擇

一些新的Web瀏覽器允許你在網頁上自定義一些突出顯示的顏色，下面代碼的默認顏色是淺藍色，當然，你可以依據個人愛好進行各種顏色設置。下面代碼引用了典型的Webkit和Mozilla供應商前綴::selection 。

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::selection { background: #e2eae2; } ::-moz-selection { background: #e2eae2; } ::-webkit-selection { background: #e2eae2; }

10.隱藏Logo上的H1文本

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h1{ text-indent: -9999px; margin: 0auto; width: 320px; height: 85px; background: transparenturl("p_w_picpaths/logo.png") no-repeatscroll; }