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CSS Grace syntax design
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/** | |
* extend 全局继承 | |
* extend 会合并选择器,不会生成冗余代码。 | |
* 1. extend: select() [ , select() ]* 继承选择器与其中的声明 http://tabatkins.github.io/specs/css-toggle-states/#toggle-group-property | |
* 2. extend: <custom-ident> [ , <custom-ident> ]* 作为 Placeholder,只继承声明,default 为保留关键字 | |
* inherit(property [ , property ]*) 局部继承 | |
*/ | |
/* input */ | |
.foo > h1 { | |
height: 300px; | |
margin: 10px; | |
padding: inherit(height, margin); | |
} | |
.bar { | |
extend: select(.foo > h1); | |
} | |
/*自定义一个 Placeholder | |
* @placeholder 'gray' 可以加引号 | |
*/ | |
@placeholder gray { | |
color: gray; | |
} | |
.text { | |
extend: gray; | |
} | |
/*output*/ | |
.foo > h1, | |
.bar { | |
height: 300px; | |
margin: 10px; | |
padding: 300px 10px; | |
} | |
.text { | |
color: gray; | |
} | |
/** | |
* mixin | |
@mixin <custom-ident>[(<custom-ident>*)] { | |
declarations | |
} | |
*/ | |
@mixin border-radius(n) { | |
-moz-border-radius: n; | |
border-radius: n; | |
} | |
.foo { | |
border-radius: 5px; | |
} | |
/* output */ | |
.foo { | |
-moz-border-radius: 5px; | |
border-radius: 5px; | |
} | |
/** | |
* @browser (39 >= version >= chrome 30) { | |
Do something | |
} | |
.foo { | |
browser: ie6, >= chrome 30; | |
} | |
*/ | |
/*input*/ | |
.foo{ | |
/* 生成一个图片作为占位图 */ | |
background: image(#999, png); | |
image-size: 200px 300px; /* 图片尺寸 */ | |
image-text: '200x300'; /* 图片中文字 */ | |
} | |
/*output*/ | |
.foo{ | |
background: url(..tmp/200x300#999$200x300.png); /* 生成一个图片作为占位图 */ | |
} | |
/* image sprites*/ | |
/*input*/ | |
.bar { | |
background-image: image('sprites.png#xywh=10,30,60,20'); | |
} | |
/*output*/ | |
.bar { | |
background-image: url(sprites.png); | |
width: 60px; | |
height: 20px; | |
background-position: 10px 30px; | |
} | |
. |
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