CSS非ASCII字符最佳实践

在写样式时常常需要用到非ASCII字符的属性值，以下：

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”

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：