最常用的css代码块

经典的css片段

1. CSS Resets

根据 [Eric-Meyer’s-reset-codes](http://meyerweb.com/eric/tools/css/reset “Eric Meyer”) 提供的css reset方法，最好别用通配符把所有的元素的margin和padding都设为0

/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain) */

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;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
  display: block;
}
body {
  line-height: 1;
}
ol, ul {
  list-style: none;
}
blockquote, q {
  quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}

在之前的[文章](http://boia.github.io/blog/2013/07/18/css-reset-style/ “css-reset-style”)中已经说过这段代码，现在在加深下印象。

2.经典的CSS Clearfix

.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.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;
}

5.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;
}

6.一般媒体查询

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 */
}

7.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](http://cssfontstack.com/) 。

/* 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;