CSS非ASCII字符最佳实践
栏目：互联网时间：2014-11-20 08:44:22
作者：zhanhailiang 日期：2014⑴0⑶0
问题场景
在写样式时常常需要用到非ASCII字符的属性值，以下：
.hot_list .sign_discount:before {
content: "满减";
padding: 0 8px;
margin-right: 7px;
font-size: 12px;
line-height: 14px;
color: #fff;
text-align: center;
background-color: #f13993;
border-radius: 11px;
}
但是Chrome下展现时有些时候会显示乱码：
除content外，font字体也是常常需要用于非ASCII字符的值，如font-family: “微软雅黑”
最好实践
为避免以上这类编码问题，CSS推荐在触及非ASCII字符时统1使用反斜杠转义以免编码问题：
backslash escapes allow authors to refer to characters they cannot easily put in a document. In this case, the backslash is followed by at most six hexadecimal digits (0..9A..F), which stand for the ISO 10646 ([ISO10646]) character with that number, which must not be zero. (It is undefined in CSS 2.1 what happens if a style sheet does contain a character with Unicode codepoint zero.) If a character in the range [0⑼a-fA-F] follows the hexadecimal number, the end of the number needs to be made clear.
详情请见：http://www.w3.org/TR/CSS2/syndata.html#escaped-characters
所以上例可以改成：
.hot_list .sign_discount:before {
content: "6ee151cf";
padding: 0 8px;
margin-right: 7px;
font-size: 12px;
line-height: 14px;
color: #fff;
text-align: center;
background-color: #f13993;
border-radius: 11px;
}
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