语法
有关此类型允许的单独语法的详细信息，请参阅 <time> 和 <percentage> 的文档。
正式语法
<time-percentage> =
<time> |
<percentage>
示例
在 calc() 中使用
如果 <time-percentage> 被指定为允许的类型，这意味着百分比会解析为时间，因此可以在 calc() 表达式中使用。
有效的百分比
50% +50% Optional plus sign -50% Negative percentages are not valid for all properties that accept percentages
无效的百分比
50 % Space not allowed between the number and the percentage sign
有效的时间
12s Positive integer -456ms Negative integer 4.3ms Non-integer 14mS The unit is case-insensitive, although capital letters are not recommended. +0s Zero with a leading + and a unit -0ms Zero with a leading - and a unit
无效的时间
0 Although unitless zero is allowed for <length>s, it's invalid for <time>s. 12.0 This is a <number>, not a <time>, because it's missing a unit. 7 ms No space is allowed between the number and the unit.
规范
| 规范 |
|---|
| CSS 值和单位模块第 4 级 # typedef-time-percentage |