Specify lowercase or uppercase for media feature names.
指定 media 特性名称的大小写。
@media (min-width: 700px) {}
/** ↑
* These media feature names */
Caveat: Media feature names within a range context are currently ignored.
警告:含有范围上下文的 media 特性名称目前是被忽略的。
string: "lower"|"upper"
"lower"
The following patterns are considered warnings:
以下模式被认为是个警告:
@media (MIN-WIDTH: 700px) {}
@media not all and (MONOCHROME) {}
@media (min-width: 700px) and (ORIENTATION: landscape) {}
The following patterns are not considered warnings:
以下模式正常:
@media (min-width: 700px) {}
@media not all and (monochrome) {}
@media (min-width: 700px) and (orientation: landscape) {}
"upper"
The following patterns are considered warnings:
以下模式被认为是个警告:
@media (min-width: 700px) {}
@media not all and (monochrome) {}
@media (MIN-WIDTH: 700px) and (orientation: landscape) {}
The following patterns are not considered warnings:
以下模式正常:
@media (MIN-WIDTH: 700px) {}
@media not all and (MONOCHROME) {}
@media (MIN-WIDTH: 700px) and (ORIENTATION: landscape) {}