Web开发者不容错过的20段CSS代码

时间 2019-11-10

标签 web 开发者容错 css 代码栏目 HTML 繁體版

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Web开发技术每一年都在革新，浏览器已逐渐支持CSS3特性，而且网站设计师和前端开发者广泛采用这种新技术进行设计与开发。但仍然有一些开发者迷恋着一些CSS2代码。

  本文将分享20段很是专业的CSS2/CSS3代码供你们使用，你能够把它们保存在IDE里、或者存储在CSS文档里，这些代码片断绝对会给你带来意外的惊喜。

CSS Resetscss

网络上关于CSS重置的代码很是多。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全部核心元素的边界框设置，这样就能够保持页边距和填充能够很好地对齐。html

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; }前端

article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; }
ol, ul { list-style: none; }html5

blockquote, q { quotes: none; }
blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; }
strong { font-weight: bold; }web

table { border-collapse: collapse; border-spacing: 0; }
img { border: 0; max-width: 100%; }canvas

p { font-size: 1.2em; line-height: 1.0em; color: #333; }浏览器

2.经典的CSS Clearfixruby

这个clearfix代码已在Web开发者之间普遍流传，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; }

html[xmlns] .clearfix { display: block; }
* html .clearfix { height: 1%; }网络

3.升级版的Clearfixapp

在表现上，新版本和经典版本不存在什么差别，这些类能够有效地清除全部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; }
.clearfix:after { clear: both; }
/* IE 6/7 */
.clearfix { zoom: 1; }

Cross-Browser Transparency

CSS3里的许多属性都与浏览器相兼容，但也有特例，好比opacity，须要对它进行一些更新才能够。附加过滤属性能够兼容任何老版的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 */
}
源码地址： http://perishablepress.com/cross-browser-transparency-via-css/

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，而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;
}
查看源码： http://css-tricks.com/snippets/css/simple-and-nice-blockquote-styling/
个性化的圆角代码

许多CSS开发者都很是熟悉圆角语法，但如何为每一个角设置不一样的值？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. 通常媒体查询

这是一段很是好的模板，用于各类零零碎碎的媒体查询，在移动设备上也可使用，这段代码甚至能够经过使用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 */

}

/* 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 */
}
源码地址： http://css-tricks.com/snippets/css/media-queries-for-standard-devices/

现代字体栈

在新网页上设计属于本身的字体栈仍是件比较困难的事情，但愿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，你能够访问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;
源码地址： http://www.sitepoint.com/eight-definitive-font-stacks/

自定义文本选择

一些新的Web浏览器容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，固然，你能够依据我的爱好进行各类颜色设置。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. 为图片建立拍立得效果边框

运用下面代码能够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。你须要修改图片的宽度/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/
}
源码地址： http://www.smipple.net/snippet/kettultim/Polaroid%20Image%20Border%20-%20CSS3
12. 锚连接伪类选择器

a:link { color: blue; }
a:visited { color: purple; }
a:hover { color: red; }
a:active { color: yellow; }

源码地址： http://www.ahrefmagazine.com/web-design/30-useful-css-snippets-for-developers

花俏地CSS3 Pull-Quotes

Pull-quotes不一样于页面里的blockquote，它们一般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;
}
源码地址： http://miekd.com/articles/pull-quotes-with-html5-and-css/

CSS3的全屏背景效果

若是你想使用大图片做为网站背景，并但愿在页面滚动时保持固定，该代码片断很是适合，不过这段代码没法在旧的浏览器上工做。

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;
}
源码： http://css-tricks.com/perfect-full-page-background-image/

内容垂直集中
相对于内容在水平位置，内容在垂直方向是很差把控的，尤为当考虑到滚动条这些因素时。这段纯CSS代码能够很好的工做。

.container {
min-height: 6.5em;
display: table-cell;
vertical-align: middle;
}
源码地址： http://www.w3.org/Style/Examples/007/center

为图片建立拍立得效果边框

运用下面代码能够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。你须要修改图片的宽度/高度值来与你的网站布局相匹配。