指定声明内禁用的属性和值对的黑名单。
a { text-transform: uppercase; }
/** ↑ ↑
* 这些属性和值 */
object: { "unprefixed-property-name": ["array", "of", "values"], "unprefixed-property-name": ["/regex/", "non-regex", /regex/] }
如果属性名称用 "/" 包围(例如 "/^animation/"),则将其解释为正则表达式。这允许方便的简写,例如:/^animation/ 将匹配 animation、animation-duration、animation-timing-function 等。
The same goes for values. Keep in mind that a regular expression value is matched against the entire value of the declaration, not specific parts of it. For example, a value like "10px solid rgba( 255 , 0 , 0 , 0.5 )" will not match "/^solid/" (notice beginning of the line boundary) but will match "/\\s+solid\\s+/" or "/\\bsolid\\b/".
Be careful with regex matching not to accidentally consider quoted string values and url() arguments. For example, "/red/" will match value such as "1px dotted red" as well as "\"foo\"" and "white url(/mysite.com/red.png)".
给定:
{
"transform": ["/scale3d/", "/rotate3d/", "/translate3d/"],
"position": ["fixed"],
"color": ["/^green/"],
"/^animation/": ["/ease/"]
}
以下模式被视为违规:
a { position: fixed; }
a { transform: scale3d(1, 2, 3); }
a { -webkit-transform: scale3d(1, 2, 3); }
a { color: green; }
a { animation: foo 2s ease-in-out; }
a { animation-timing-function: ease-in-out; }
a { -webkit-animation-timing-function: ease-in-out; }
以下模式不被视为违规:
a { position: relative; }
a { transform: scale(2); }
a { -webkit-transform: scale(2); }
a { color: lightgreen; }
a { animation: foo 2s linear; }
a { animation-timing-function: linear; }
a { -webkit-animation-timing-function: linear; }