[转载]Web开发者不容错过的CSS代码
原文链接：
http://www.csdn.net/article/2013-05-24/2815422-20-Useful-CSS-Snippets-Every-Designer-Should-Have
http://www.csdn.net/article/2013-05-29/2815470-css-snippets-for-designers
1. CSS Resets
网络上关于CSS重置的代码非常多。本段代码是根据Eric Meyer’s reset codes进行改编的，里面包含一点响应式图片和所有核心元素的边界框设置，这样就可以保持页边距和填充可以很好地对齐。
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.经典的CSS Clearfix
这个clearfix代码已在Web开发者之间广泛流传，这段类选择器要应用到持有浮动元素的容器中，确保后面的内容都不会浮动，但会被下推和清除。
.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.升级版的Clearfix
在表现上，新版本和经典版本不存在什么差异，这些类可以有效地清除所有floats，但它们只兼容现代浏览器和传统的IE 6-8。
.clearfix:before, .container:after { content: ""; display: table; }<font></font> .clearfix:after { clear: both; } /* IE 6/7 */ .clearfix { zoom: 1; }
4. Cross-Browser Transparency
CSS3里的许多属性都与浏览器相兼容，但也有特例，比如opacity，需要对它进行一些更新才可以。附加过滤属性可以兼容任何老版的IE浏览器。
.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 */ }
5. CSS Blockquote模板
这段代码主要用在页面上进行分离引用或复制内容，并且给页面文字提供了默认样式。
blockquote { background: #f9f9f9;< border-left: 10px solid #ccc; margin: 1.5em 10px; padding: .5em 10px; 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; }
6. 个性化的圆角代码
许多CSS开发者都非常熟悉圆角语法，但如何为每个角设置不同的值？不如看看下面这段代码吧！
#container { -webkit-border-radius: 4px 3px 6px 10px; -moz-border-radius: 4px 3px 6px 10px; -o-border-radius: 4px 3px 6px 10px; border-radius: 4px 3px 6px 10px; } /* 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. 一般媒体查询
这是一段非常好的模板，用于各种零零碎碎的媒体查询，在移动设备上也可以使用，这段代码甚至可以通过使用min-device-pixel-ratio引用到视网膜设备上。
/* Smartphones (portrait and landscape) ----------- */ @media only screen and (min-device-width : 320px) and (max-device-width : 480px) { /* Styles */ } /* Smartphones (landscape) ----------- */ @media only screen and (min-width : 321px) { /* Styles */ } /* Smartphones (portrait) ----------- */ @media only screen and (max-width : 320px) { /* Styles */ } /* iPads (portrait and landscape) ----------- */ @media only screen and (min-device-width : 768px) and (max-device-width : 1024px) { /* Styles */ } <font></font> /* iPads (landscape) ----------- */ @media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) { /* Styles */ } /* iPads (portrait) ----------- */ @media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) { /* Styles */ } /* Desktops and laptops ----------- */ @media only screen and (min-width : 1224px) { /* Styles */ } /* Large screens ----------- */ @media only screen and (min-width : 1824px) { /* Styles */ } /* iPhone 4 ----------- */ @media only screen and (-webkit-min-device-pixel-ratio:1.5), only screen and (min-device-pixel-ratio:1.5) { /* Styles */ }
8. 现代字体栈
在新网页上设计属于自己的字体栈还是件比较困难的事情，希望下面这段代码能给你带来启发和开发模板，关于更多字体栈源码，你可以访问CSS Font Stacks。
/* 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;
9. 自定义文本选择
一些新的Web浏览器允许你在网页上自定义一些突出显示的颜色，下面代码的默认颜色是浅蓝色，当然，你可以依据个人爱好进行各种颜色设置。下面代码引用了典型的Webkit和Mozilla供应商前缀::selection 。
::selection { background: #e2eae2; } ::-moz-selection { background: #e2eae2; } ::-webkit-selection { background: #e2eae2; }
10.隐藏Logo上的H1文本
h1 { text-indent: -9999px; margin: 0 auto; width: 320px; height: 85px; background: transparent url("images/logo.png") no-repeat scroll; }
11. 为图片创建拍立得效果边框
运用下面代码可以在图片上实现拍立得相片效果——一大片白色边框和细微的阴影。你需要修改图片的宽度/高度值来与你的网站布局相匹配。
img.polaroid { background:#000; /*Change this to a background image or remove*/ border:solid #fff; border-width:6px 6px 20px 6px; box-shadow:1px 1px 5px #333; /* Standard blur at 5px. Increase for more depth * -webkit-box-shadow:1px 1px 5px #333; -moz-box-shadow:1px 1px 5px #333; height:200px; /*Set to height of your image or desired div*/ width:200px; /*Set to width of your image or desired div*/ }
12. 锚链接伪类选择器
a:link { color: blue; } a:visited { color: purple; } a:hover { color: red; } a:active { color: yellow; }
13. 花俏地CSS3 Pull-Quotes
Pull-quotes不同于页面里的blockquote，它们通常用在文章中来引用文本。
.has-pullquote:before { /* Reset metrics. */ padding: 0; border: none; /* Content */ content: attr(data-pullquote); /* Pull out to the right, modular scale based margins. */ float: rightright; width: 320px; margin: 12px -140px 24px 36px; /* Baseline correction */ position: relative; top: 5px; /* Typography (30px line-height equals 25% incremental leading) */ font-size: 23px; line-height: 30px; } .pullquote-adelle:before { font-family: "adelle-1", "adelle-2"; font-weight: 100; top: 10px !important; } .pullquote-helvetica:before { font-family: "Helvetica Neue", Arial, sans-serif; font-weight: bold; top: 7px !important; } .pullquote-facit:before { font-family: "facitweb-1", "facitweb-2", Helvetica, Arial, sans-serif; font-weight: bold; top: 7px !important; }
14. CSS3的全屏背景效果
如果你想使用大图片作为网站背景，并希望在页面滚动时保持固定，该代码片段非常适合，不过这段代码无法在旧的浏览器上工作。
html { background: url('images/bg.jpg') no-repeat center center fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover; }
15. 内容垂直集中
相对于内容在水平位置，内容在垂直方向是不好把控的，尤其当考虑到滚动条这些因素时。这段纯CSS代码可以很好的工作。
.container { min-height: 6.5em; display: table-cell; vertical-align: middle; }
16. 垂直滚动条
这段代码将确保你的HTML元素总是稍微高于浏览器滚动条所停留的位置。
html { height: 101% }
17. CSS3 Gradients模板
#colorbox { background: #629721; background-image: -webkit-gradient(linear, left top, left bottombottom, from(#83b842), to(#629721)); background-image: -webkit-linear-gradient(top, #83b842, #629721); background-image: -moz-linear-gradient(top, #83b842, #629721); background-image: -ms-linear-gradient(top, #83b842, #629721); background-image: -o-linear-gradient(top, #83b842, #629721); background-image: linear-gradient(top, #83b842, #629721); }
18. @Font-Face模板
使用@font-face可以把TTF/OTF/SVG/WOFF文件嵌入到网站，并生成自定义font families。
@font-face { font-family: 'MyWebFont'; src: url('webfont.eot'); /* IE9 Compat Modes */ src: url('webfont.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */ url('webfont.woff') format('woff'), /* Modern Browsers */ url('webfont.ttf') format('truetype'), /* Safari, Android, iOS */ url('webfont.svg#svgFontName') format('svg'); /* Legacy iOS */ } body { font-family: 'MyWebFont', Arial, sans-serif; }
19.创建缝合效果
p { position:relative; z-index:1; padding: 10px; margin: 10px; font-size: 21px; line-height: 1.3em; color: #fff; background: #ff0030; -webkit-box-shadow: 0 0 0 4px #ff0030, 2px 1px 4px 4px rgba(10,10,0,.5); -moz-box-shadow: 0 0 0 4px #ff0030, 2px 1px 4px 4px rgba(10,10,0,.5); box-shadow: 0 0 0 4px #ff0030, 2px 1px 6px 4px rgba(10,10,0,.5); -webkit-border-radius: 3px; -moz-border-radius: 3px; border-radius: 3px; } p:before { content: ""; position: absolute; z-index: -1; top: 3px; bottombottom: 3px; left :3px; rightright: 3px; border: 2px dashed #fff; } p a { color: #fff; text-decoration:none; } p a:hover, p a:focus, p a:active { text-decoration:underline; }
20. CSS3 斑马线效果
当用户在浏览许多行数据时，很难分清哪一个单元格是属于哪一行的。默认情况下，通过添加斑马线，用户可以给奇偶行更新不同的背景色。
tbody tr:nth-child(odd) { background-color: #ccc; }
21.花式连字符（&）
这个类应该在span元素里使用，并且里面包括&字符。它使用经典的serif字体和斜体来增强&符号。
.amp { font-family: Baskerville, 'Goudy Old Style', Palatino, 'Book Antiqua', serif; font-style: italic; font-weight: normal; }
22.段落首字符下沉
Typically you’ll notice dropped capitals appear in printed mediums, such as newspapers and books. However this can also be a neat effect in webpages or blogs where there is enough extra room in the layout. This CSS rule is targeting all paragraphs but you may limit this based on a single class or ID.
p:first-letter{ display: block; margin: 5px 0 0 5px; float: left; color: #ff3366; font-size: 5.4em; font-family: Georgia, Times New Roman, serif; }
23.内层CSS3盒阴影
The box shadow property has offered immense changes into how we build websites. You can portray box shadows on nearly any element, and they all generally look great. This piece of code will force inner shadows which is a lot harder to design around, but in the right cases it looks pristine.
#mydiv { -moz-box-shadow: inset 2px 0 4px #000; -webkit-box-shadow: inset 2px 0 4px #000; box-shadow: inset 2px 0 4px #000; }
24. 外层CSS3盒阴影
In relation to the inner CSS3 shadows I also want to present an outer shadow code snippet. Note the 3rd number in our syntax represents blur distance while the 4th number represents the spread. You can learn more about these values from W3Schools.
#mydiv { -webkit-box-shadow: 0 2px 2px -2px rgba(0, 0, 0, 0.52); -moz-box-shadow: 0 2px 2px -2px rgba(0, 0, 0, 0.52); box-shadow: 0 2px 2px -2px rgba(0, 0, 0, 0.52); }
25. 三角形列表符号
Believe it or not it is actually possible to generate triangle-shaped bullets solely in CSS3. This is a really cool technique which does look awesome in respected browsers. The only potential issue is a major lack of support for fallback methods.
ul { margin: 0.75em 0; padding: 0 1em; list-style: none; } li:before { content: ""; border-color: transparent #111; border-style: solid; border-width: 0.35em 0 0.35em 0.45em; display: block; height: 0; width: 0; left: -1em; top: 0.9em; position: relative; }
26. 居中对齐并设置固定宽度
I know earlier it was mentioned how to setup horizontal positioning. I want to jump back in with thisquick snippet for horizontal positioning, which is perfect to be used on fixed-width layouts.
#page-wrap { width: 800px; margin: 0 auto; }
27. CSS3列文本
CSS3 columns would be nice to see in website layouts, but the reality is how we can split up text based on column styles. Use this snippet to place any number of columns inline with your paragraphs, where text will split evenly based on your column number.
#columns-3 { text-align: justify; -moz-column-count: 3; -moz-column-gap: 12px; -moz-column-rule: 1px solid #c4c8cc; -webkit-column-count: 3; -webkit-column-gap: 12px; -webkit-column-rule: 1px solid #c4c8cc; }
28. 固定页脚
This is actually a lot more useful than it sounds, but appending a fixed footer into your website is quite simple. These footers will scroll with the user and may contain helpful information about your site or unique contact details. Ideally this would only be implemented in cases where it truly adds value to the user interface.
#footer { position: fixed; left: 0px; bottom: 0px; height: 30px; width: 100%; background: #444; } /* IE 6 */ * html #footer { position: absolute; top: expression((0-(footer.offsetHeight)+(document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight)+(ignoreMe = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop))+'px'); }
29. IE 6下修复PNG格式的透明度
Using transparent images inside websites has become a very common practice. This started with gif images, but has evolved into alpha-transparent PNGs. Unfortunately older legacy versions of Internet Explorer have never supported the transparency. Adding this brief CSS snippet should clear up the problem.
.bg { width:200px; height:100px; background: url(/folder/yourimage.png) no-repeat; _background:none; _filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/folder/yourimage.png',sizingMethod='crop'); } /* 1px gif method */ img, .png { position: relative; behavior: expression((this.runtimeStyle.behavior="none")&&(this.pngSet?this.pngSet=true:(this.nodeName == "IMG" && this.src.toLowerCase().indexOf('.png')>-1?(this.runtimeStyle.backgroundImage = "none", this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.src + "', sizingMethod='image')", this.src = "images/transparent.gif"):(this.origBg = this.origBg? this.origBg :this.currentStyle.backgroundImage.toString().replace('url("','').replace('")',''), this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.origBg + "', sizingMethod='crop')", this.runtimeStyle.backgroundImage = "none")),this.pngSet=true)); }
30. 跨浏览器设置最小高度
Developers who have needed to work with min-height know all about the shady support. Many newer browsers can handle this perfectly, however Internet Explorer and older versions of Firefox do have trouble. This set of codes should provide a fix to any related bugs.
#container { min-height: 550px; height: auto !important; height: 550px; }
31.CSS3发光输入框
I really enjoy this basic custom CSS3 class because of how it overwrites the default browser behavior. Users of Chrome & Safari know about annoying input outlines in forms. Adding these properties into your stylesheet will setup a whole new design for basic input elements.
input[type=text], textarea { -webkit-transition: all 0.30s ease-in-out; -moz-transition: all 0.30s ease-in-out; -ms-transition: all 0.30s ease-in-out; -o-transition: all 0.30s ease-in-out; outline: none; padding: 3px 0px 3px 3px; margin: 5px 1px 3px 0px; border: 1px solid #ddd; } input[type=text]:focus, textarea:focus { box-shadow: 0 0 5px rgba(81, 203, 238, 1); padding: 3px 0px 3px 3px; margin: 5px 1px 3px 0px; border: 1px solid rgba(81, 203, 238, 1); }
32.基于文件类型来创建链接样式
Quite the obscure bit of CSS but I love the creativity! You can determine the file type of your links using CSS selectors and implement icons as background images. These may include the various protocols (HTTP, FTP, IRC, mailto) or simply the file types themselves (mp3, avi, pdf).
/* external links */ a[href^="http://"] { padding-right: 13px; background: url('external.gif') no-repeat center rightright; } /* emails */ a[href^="mailto:"] { padding-right: 20px; background: url('email.png') no-repeat center rightright; } /* pdfs */ a[href$=".pdf"] { padding-right: 18px; background: url('acrobat.png') no-repeat center rightright; }
33.pre标签封装代码
The typical pre tags are used in layouts to display large chunks of code. This is preformatted text like you would find inside Notepad or Textedit, except you’ll often notice long lines produce horizontal scrollbars. This block of CSS will force all pre tags to wrap code instead of breaking outside the container.
pre { whitewhite-space: pre-wrap; /* css-3 */ whitewhite-space: -moz-pre-wrap; /* Mozilla, since 1999 */ whitewhite-space: -pre-wrap; /* Opera 4-6 */ whitewhite-space: -o-pre-wrap; /* Opera 7 */ word-wrap: break-word; /* Internet Explorer 5.5+ */ }
34.鼠标指向时变成手型
There are lots of default clickable HTML elements which do not always display the hand pointer icon. Using this set of CSS selectors you may force the pointer over a number of key elements, along with any other objects using the class .pointer.
a[href], input[type='submit'], input[type='image'], label[for], select, button, .pointer { cursor: pointer; }
35. 页面顶部阴影
Developers may not find a great use for this other than some pleasing aesthetics. But I really enjoy this effect and it’s definitely something unique! Simply append this CSS code targeting your body element to display a dark drop shadow fading down from the top of your webpage.
body:before { content: ""; position: fixed; top: -10px; left: 0; width: 100%; height: 10px; -webkit-box-shadow: 0px 0px 10px rgba(0,0,0,.8); -moz-box-shadow: 0px 0px 10px rgba(0,0,0,.8); box-shadow: 0px 0px 10px rgba(0,0,0,.8); z-index: 100; }
36. 气泡引用效果
Numerous user interface purposes come to mind when discussing speech bubbles. These could be handy in discussion comments, or creating bulletin boards, or displaying quoted text. Simply add the following classes into your stylesheet and you can find related HTML codes from this CSS3 snippets post.
.chat-bubble { background-color: #ededed; border: 2px solid #666; font-size: 35px; line-height: 1.3em; margin: 10px auto; padding: 10px; position: relative; text-align: center; width: 300px; -moz-border-radius: 20px; -webkit-border-radius: 20px; -moz-box-shadow: 0 0 5px #888; -webkit-box-shadow: 0 0 5px #888; font-family: 'Bangers', arial, serif; } .chat-bubble-arrow-border { border-color: #666 transparent transparent transparent; border-style: solid; border-width: 20px; height: 0; width: 0; position: absolute; bottom: -42px; left: 30px; } .chat-bubble-arrow { border-color: #ededed transparent transparent transparent; border-style: solid; border-width: 20px; height: 0; width: 0; position: absolute; bottom: -39px; left: 30px; }
37.指定标题样式
I have offered lots of common syntax including browser CSS resets and a few HTML element resets. This template includes default styles for all major heading elements ranging from H1-H5. You may also consider adding H6 but I have never seen a website using all six nested headers.
h1,h2,h3,h4,h5{ color: #005a9c; } h1{ font-size: 2.6em; line-height: 2.45em; } h2{ font-size: 2.1em; line-height: 1.9em; } h3{ font-size: 1.8em; line-height: 1.65em; } h4{ font-size: 1.65em; line-height: 1.4em; } h5{ font-size: 1.4em; line-height: 1.25em; }
38. 利用CSS生成纹理图案背景
Designers have seen this effect added into websites for a long time, although they generally use repeating tile images with alpha-transparency. However we can embed Base64 code into CSS to generate brand new images. This is the case as in the snippet above which generates a small noise texture above the body background, or you can create a customized noise background over atNoiseTextureGenerator.
body { background-image: url(data:image/png;base64,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); background-color: #0094d0; }
39. Continued List Ordering
I feel this may not be an extremely popular snippet, but it does have its market among developers. There may be situations where you’ll need to continue a list of items but split into two separate UL elements. Check out the code above for an awesome CSS-only fix.
你可能会遇到这种列表情况，需要把这个列表拆分成两个UL元素，你不妨看看下面这段代码。
ol.chapters { list-style: none; margin-left: 0; } ol.chapters > li:before { content: counter(chapter) ". "; countercounter-increment: chapter; font-weight: bold; float: left; width: 40px; } ol.chapters li { clear: left; } ol.start { countercounter-reset: chapter; } ol.continue { countercounter-reset: chapter 11; }
40. 为文本添加悬停提示框
There are lots of open source jQuery-based tooltips which you can implement on your websites. But CSS-based tooltips are very rare, and this is one of my favorite snippets. Just copy this over into your stylesheet and using the new HTML5 data-attributes you can setup the tooltip text via data-tooltip.
把这段代码拷贝到样式表中，使用新的HTML5数据属性，通过使用data-tooltip你就可以给文本添加悬停提示框了。
a { border-bottom:1px solid #bbb; color:#666; display:inline-block; position:relative; text-decoration:none; } a:hover, a:focus { color:#36c; } a:active { top:1px; } /* Tooltip styling */ a[data-tooltip]:after { border-top: 8px solid #222; border-top: 8px solid hsla(0,0%,0%,.85); border-left: 8px solid transparent; border-right: 8px solid transparent; content: ""; display: none; height: 0; width: 0; left: 25%; position: absolute; } a[data-tooltip]:before { background: #222; background: hsla(0,0%,0%,.85); color: #f6f6f6; content: attr(data-tooltip); display: none; font-family: sans-serif; font-size: 14px; height: 32px; left: 0; line-height: 32px; padding: 0 15px; position: absolute; text-shadow: 0 1px 1px hsla(0,0%,0%,1); whitewhite-space: nowrap; -webkit-border-radius: 5px; -moz-border-radius: 5px; -o-border-radius: 5px; border-radius: 5px; } a[data-tooltip]:hover:after { display: block; top: -9px; } a[data-tooltip]:hover:before { display: block; top: -41px; } a[data-tooltip]:active:after { top: -10px; } a[data-tooltip]:active:before { top: -42px; }
41. 创建暗灰色的按钮样式
As another helpful template for web developers I have included this simplistic CSS3 buttons class. I am using the class name .graybtn which is appropriate for the colors, but this isn’t to say you couldn’t change the styles to match your own website. Check out the hex values inside a color wheel to match similar hues in different color ranges.
下面这段代码创建了CSS3按钮类，并根据按钮颜色命名为.graybtn。当然你也可以根据自己的网站风格对颜色进行更改。
.graybtn { -moz-box-shadow:inset 0px 1px 0px 0px #ffffff; -webkit-box-shadow:inset 0px 1px 0px 0px #ffffff; box-shadow:inset 0px 1px 0px 0px #ffffff; background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #ffffff), color-stop(1, #d1d1d1) ); background:-moz-linear-gradient( center top, #ffffff 5%, #d1d1d1 100% ); filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#d1d1d1'); background-color:#ffffff; -moz-border-radius:6px; -webkit-border-radius:6px; border-radius:6px; border:1px solid #dcdcdc; display:inline-block; color:#777777; font-family:arial; font-size:15px; font-weight:bold; padding:6px 24px; text-decoration:none; text-shadow:1px 1px 0px #ffffff; } .graybtn:hover { background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #d1d1d1), color-stop(1, #ffffff) ); background:-moz-linear-gradient( center top, #d1d1d1 5%, #ffffff 100% ); filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#d1d1d1', endColorstr='#ffffff'); background-color:#d1d1d1; } .graybtn:active { position:relative; top:1px; }
42.打印的页面上显示URL
If you run a news website or resource with lots of print material, this is possibly one of the greatest snippets you’ll ever find. Anchor links in your webpage will look and display exactly as normal. However when printed your users will be able to see the link text along with the full hyperlinked URL. This is handy when visitors need to access a webpage you’ve linked but cannot see the URL in a typical printed document.
这条规则会使打印出来的页面在超链接文字后面加上URL，URL会被放在一组括号里面,前后各留一个空格。
@media print { a:after { content: " [" attr(href) "] "; } }
43. 屏蔽Webkit移动浏览器中元素高亮效果
Depending on your experience working in mobile this snippet may not appear very helpful. But when accessing mobile websites in Safari and other Webkit-based engines, you’ll notice a grey box surrounds elements as you tap them. Just append these styles into your website and it shouldremove all native mobile browser highlights.
body { -webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; }
44. 利用CSS生成小圆点图案
I was a bit taken back when initially finding this snippet online. But it is a really interesting method for generating CSS3-only BG patterns on the fly. I have targeted the body element as default but you could apply this onto any container div in your webpage.
通过下面的代码，可以让你的网站背景上产生一些小圆点装饰图案。默认情况下，它是使用在body元素上，但你也可以把它使用在网页里的其他容器上。
body { background: radial-gradient(circle, white 10%, transparent 10%), radial-gradient(circle, white 10%, black 10%) 50px 50px; background-size: 100px 100px; }
45.CSS3棋盘格效果
Similar to the polka-dots above we can also create a full seamless checkerboard pattern. This method requires a bit more syntax to get working, but it looks flawless in all CSS3-supported browsers. Also you can change the color values from white and black to match that of your own website color scheme.
和上面的小圆点设计一样，这个效果需要一些额外的语法才可以工作，它需要在支持CSS3的浏览器上运行，效果很艳丽。当然，你可以根据需要自定义颜色。
body { background-color: white; background-image: linear-gradient(45deg, black 25%, transparent 25%, transparent 75%, black 75%, black), linear-gradient(45deg, black 25%, transparent 25%, transparent 75%, black 75%, black); background-size: 100px 100px; background-position: 0 0, 50px 50px; }
46. Github Fork Ribbon
As a big user on Github this basic code snippet blew my mind. You can quickly generate Github corner ribbons in your webpage using CSS3 transform properties. This is perfect for open source plugins or code packs which have a popular following on Github. Also great for hosted HTML/CSS/JS demos if you have an active Github repo.
下面这段代码是利用CSS3的transform属性生成Fork me on Github红丝带效果。
.ribbon { background-color: #a00; overflow: hidden; /* top left corner */ position: absolute; left: -3em; top: 2.5em; /* 45 deg ccw rotation */ -moz-transform: rotate(-45deg); -webkit-transform: rotate(-45deg); /* shadow */ -moz-box-shadow: 0 0 1em #888; -webkit-box-shadow: 0 0 1em #888; } .ribbon a { border: 1px solid #faa; color: #fff; display: block; font: bold 81.25% 'Helvetiva Neue', Helvetica, Arial, sans-serif; margin: 0.05em 0 0.075em 0; padding: 0.5em 3.5em; text-align: center; text-decoration: none; /* shadow */ text-shadow: 0 0 0.5em #444; }
47. 字体压缩
The main reason web developers don’t always use this condensed font property is because not every setting is needed. But having an understanding of this shorthand may save you a lot of time and space in your stylesheets. Keep this snippet handy just in case you ever want to shorten the formatting of your font styles.
在样式表里使用如下代码能够帮你节省许多网页空间。
p { font: italic small-caps bold 1.2em/1.0em Arial, Tahoma, Helvetica; }
48. 纸页面卷曲效果
This page curl effect can be applied to almost any container which holds website content. Immediately I thought about image media and quoted text, but really this could be anything at all. Check out the snippet’s live demo page for a better grasp of how these page curls function.
ul.box { position: relative; z-index: 1; /* prevent shadows falling behind containers with backgrounds */ overflow: hidden; list-style: none; margin: 0; padding: 0; } ul.box li { position: relative; float: left; width: 250px; height: 150px; padding: 0; border: 1px solid #efefef; margin: 0 30px 30px 0; background: #fff; -webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset; -moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.06) inset; } ul.box li:before, ul.box li:after { content: ''; z-index: -1; position: absolute; left: 10px; bottom: 10px; width: 70%; max-width: 300px; /* avoid rotation causing ugly appearance at large container widths */ max-height: 100px; height: 55%; -webkit-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3); -moz-box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3); box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3); -webkit-transform: skew(-15deg) rotate(-6deg); -moz-transform: skew(-15deg) rotate(-6deg); -ms-transform: skew(-15deg) rotate(-6deg); -o-transform: skew(-15deg) rotate(-6deg); transform: skew(-15deg) rotate(-6deg); } ul.box li:after { left: auto; right: 10px; -webkit-transform: skew(15deg) rotate(6deg); -moz-transform: skew(15deg) rotate(6deg); -ms-transform: skew(15deg) rotate(6deg); -o-transform: skew(15deg) rotate(6deg); transform: skew(15deg) rotate(6deg); }
49. 发光的锚链接
CSS3 text shadows offer a unique method of styling your webpage typography. And more specifically this snippet is an excellent resource for custom creative links with glowing hover effects. I doubt this effect can be pulled off elegantly in the majority of websites, but if you have the patience to get it looking nice you are sure to impress visitors.
a { color: #00e; } a:visited { color: #551a8b; } a:hover { color: #06e; } a:focus { outline: thin dotted; } a:hover, a:active { outline: 0; } a, a:visited, a:active { text-decoration: none; color: #fff; -webkit-transition: all .3s ease-in-out; } a:hover, .glow { color: #ff0; text-shadow: 0 0 10px #ff0; }
50. 创建CSS3 Banner
Generally you would need to setup a background image to duplicate this effect in other browsers. But in CSS3-supported engines we can generate dynamic banners which hang off the edge of your content wrappers, all without images! These may look good attached onto e-commerce products, image thumbnails, video previews, or blog articles, to list just a few ideas.
在支持CSS3的浏览器中，下面的代码可以生成漂亮的纯CSS图案。这种效果常见于电子商务网站的产品图片、缩略图、视频预览等。
.featureBanner { position: relative; margin: 20px } .featureBanner:before { content: "Featured"; position: absolute; top: 5px; left: -8px; padding-right: 10px; color: #232323; font-weight: bold; height: 0px; border: 15px solid #ffa200; border-right-color: transparent; line-height: 0px; box-shadow: -0px 5px 5px -5px #000; z-index: 1; } .featureBanner:after { content: ""; position: absolute; top: 35px; left: -8px; border: 4px solid #89540c; border-left-color: transparent; border-bottom-color: transparent; }
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