Use icon fonts to assist CSS in image processing
这篇文章主要介绍了使用icon fonts来辅助CSS处理图片,在移动端网页的设计中使用较多,需要的朋友可以参考下
由于移动端设备拥有不同分辨率，PPI 等引起的问题， 常常需要针对不同屏幕分辨率来调整优化，如使用 @2x 图片， max-width 限制等。
采用 css @font-face 用来显示 icon 也不失为一种好办法。
因为 icon fonts (字体)是矢量图形，所以不受分辨率的影响，同时可以做到完美缩放；当然，也可使用在 WEB 端。
优点
文件小
加载性能好
支持 css 样式
IE6/7 下也支持
缺点
样式限制，使用扁平化风格
移动端还存在不兼容问题
少量移动设备和 icon fonts 字符编码冲突
FF和 IE9 下跨域问题
性能问题
使用方法
制作字体文件
可以利用字体工具手动制作
也可以利用在线工具自动生成
在 css 中引用，如下
引入字体文件
@font-face {font-family: 'iconfont';
src: url('iconfont.eot'); /* IE9*/
src: url('iconfont.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
url('iconfont.woff') format('woff'), /* chrome、firefox */
url('iconfont.ttf') format('truetype'), /* chrome、firefox、opera、Safari, Android, iOS 4.2+*/
url('iconfont.svg#uxiconfont') format('svg'); /* iOS 4.1- */
}再定义一个 icon-* 通配我们所有图标的共有 CSS 样式，
[class^="icon-"], [class*=" icon-"] {
display: inline-block;
speak: none
font-family: "iconfont";
font-size: 16px;
line-height: 1;
font-style: normal;
/** 字体图标出现锯齿的问题： */
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}最后是利用 :before 来注入每个 icon 对应的字体编码
.icon-bell:before {
content: "\003432";
}
.icon-search:before {
content: "\003433";
}以上就是本文的全部内容，希望对大家的学习有所帮助，更多相关内容请关注PHP中文网！
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