用法
Variables (变量)
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// sass style
//-----------------------------------
$fontStack: Helvetica, sans-serif;
$primaryColor: #333;
body {
font-family: $fontStack;
color: $primaryColor;
}
//css style
//-----------------------------------
body {
font-family: Helvetica, sans-serif;
color: #333;
}
Nesting (嵌套)
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// sass style
//-----------------------------------
nav {
ul {
margin: 0;
padding: 0;
list-style: none;
}
li { display: inline-block; }
a {
display: block;
padding: 6px 12px;
text-decoration: none;
}
}
//css style
//-----------------------------------
nav ul {
margin: 0;
padding: 0;
list-style: none;
}
nav li {
display: inline-block;
}
nav a {
display: block;
padding: 6px 12px;
text-decoration: none;
}
Import (导入)
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// sass style
//-----------------------------------
// _reset.scss
html,
body,
ul,
ol {
margin: 0;
padding: 0;
}
//sass style
//-----------------------------------
// base.scss
@import 'reset';
body {
font-size: 100% Helvetica, sans-serif;
background-color: #efefef;
}
//css style
//-----------------------------------
html, body, ul, ol {
margin: 0;
padding: 0;
}
body {
background-color: #efefef;
font-size: 100% Helvetica, sans-serif;
}
Mixin (宏定义)
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//sass style
//-----------------------------------
@mixin box-sizing ($sizing) {
-webkit-box-sizing:$sizing;
-moz-box-sizing:$sizing;
box-sizing:$sizing;
}
.box-border{
border:1px solid #ccc;
@include box-sizing(border-box);
}
//css style
//-----------------------------------
.box-border {
border: 1px solid #ccc;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
Extended/Inherited (扩展/继承)
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//sass style
//-----------------------------------
.message {
border: 1px solid #ccc;
padding: 10px;
color: #333;
}
.success {
@extend .message;
border-color: green;
}
.error {
@extend .message;
border-color: red;
}
.warning {
@extend .message;
border-color: yellow;
}
//css style
//-----------------------------------
.message, .success, .error, .warning {
border: 1px solid #cccccc;
padding: 10px;
color: #333;
}
.success {
border-color: green;
}
.error {
border-color: red;
}
.warning {
border-color: yellow;
}
Operatior（运算符）
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//sass style
//-----------------------------------
.container { width: 100%; }
article[role="main"] {
float: left;
width: 600px / 960px * 100%;
}
aside[role="complimentary"] {
float: right;
width: 300px / 960px * 100%;
}
//css style
//-----------------------------------
.container {
width: 100%;
}
article[role="main"] {
float: left;
width: 62.5%;
}
aside[role="complimentary"] {
float: right;
width: 31.25%;
}
Color (颜色)
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//sass style
//-----------------------------------
$linkColor: #08c;
a {
text-decoration:none;
color:$linkColor;
&:hover{
color:darken($linkColor,10%);
}
}
//css style
//-----------------------------------
a {
text-decoration: none;
color: #0088cc;
}
a:hover {
color: #006699;
}
高级用法
If/Else(条件语句)
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p {
@if 1 + 1 == 2 { border: 1px solid; }
@if 5 < 3 { border: 2px dotted; }
}
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@if lightness($color) > 30% {
background-color: #000;
} @else {
background-color: #fff;
}
For/While (循环语句)
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@for $i from 1 to 10 {
.border-#{$i} {
border: #{$i}px solid blue;
}
}
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$i: 6;
@while $i > 0 {
.item-#{$i} { width: 2em * $i; }
$i: $i - 2;
}
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//each is similar with for
@each $member in a, b, c, d {
.#{$member} {
background-image: url("/image/#{$member}.jpg");
}
}
Function（自定义函数）
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@function double($n) {
@return $n * 2;
}
#sidebar {
width: double(5px);
}