CSS非ASCII字符最佳实践
作者:zhanhailiang 日期:2014-10-30
问题场景
在写样式时常常须要用到非ASCII字符的属性值,例如以下:
.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; }
可是Chrome下展示时有些时候会显示乱码:
除content外,font字体也是常常须要用于非ASCII字符的值。如font-family: “微软雅黑”
最佳实践
为避免以上这类编码问题,CSS推荐在涉及非ASCII字符时统一使用反斜杠转义以避免编码问题:
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 [0-9a-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
所以上例能够改成:
.hot_list .sign_discount:before { content: "\6ee1\51cf"; padding: 0 8px; margin-right: 7px; font-size: 12px; line-height: 14px; color: #fff; text-align: center; background-color: #f13993; border-radius: 11px; }