Generated by SassMeister.com.

SassMeister-input.scss

// ----
// libsass (v0.7.0)
// ----
 
// 1 变量(以$开头)
$blue : #1875e7;
div {
　color : $blue;
}
// 1.1 变量在字符串中#{}
$side : left;
.rounded {
    border-#{$side}-radius: 5px;
}
// 2 计算
$10 : 10px;
div{
  font-size: $10 *1.2;
}
// 3.选择器嵌套
div {
   p{
      color: red;
   }
   a{
     color: #f00;
     &:hover { 
        color: #ffb3ff;
     }
   }
}
// 4.继承
.class1 {
    border: 1px solid #ddd;
}
.class2 {
    @extend .class1;
    font-size:120%;
}
// 5.mixin
@mixin left {
    float: left;
    margin-left: 10px;
}
div{
    @include left;
}
// 5.mixin 加参数
@mixin right($value: 10px) {
    float: right;
    margin-right: $value;
}
p {
   @include right();
}
div {
    @include right(20px);
}
@mixin border-radius($radius: 10px) {
   -webkit-border-radius: $radius;
      -moz-border-radius: $radius;
           border-radius: $radius;
}
div{
    @include border-radius(5px);
}
// 6. 条件判断
$a: 0;
div{
    @if $a > 0 {
        color: red;
    }
    @else {
        color: blue;
    }
}
 
// 7. 循环
 
// 7.1 for循环
@for $i from 1 to 10 {
    .border-#{$i} {
        border: #{$i}px solid blue;
    }
}
// 7.2 while循环
$i: 6;
@while $i > 0 {
    .item-#{$i} { width: 2em * $i; }
    $i: $i - 2;
}
// 7.3 each循环
@each $member in a, b, c, d {
    .#{$member} {
        background-image: url("/image/#{$member}.jpg");
    }
    
// 8. 自定义函数
@function double($n) {
    @return $n * 2;
}
#sidebar {
    width: double(5px);
}
// 10. Mixin & Placeholder 
. %center {
  margin-left: auto;
  margin-right: auto;
  display: block;
}

@mixin skin($color, $size) {
  @extend %center;
  background: $color;
  height: $size;
}

a { @include skin(pink, 10em) }
b { @include skin(blue, 90px) }

SassMeister-output.css

div {
  color: #1875e7; }

.rounded {
  border-left-radius: 5px; }

div {
  font-size: 12px; }

div p {
  color: red; }
div a {
  color: #f00; }
  div a:hover {
    color: #ffb3ff; }

.class1, .class2 {
  border: 1px solid #ddd; }

.class2 {
  font-size: 120%; }

div {
  float: left;
  margin-left: 10px; }

p {
  float: right;
  margin-right: 10px; }

div {
  float: right;
  margin-right: 20px; }

div {
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px; }

div {
  color: blue; }

.border-1 {
  border: 1px solid blue; }

.border-2 {
  border: 2px solid blue; }

.border-3 {
  border: 3px solid blue; }

.border-4 {
  border: 4px solid blue; }

.border-5 {
  border: 5px solid blue; }

.border-6 {
  border: 6px solid blue; }

.border-7 {
  border: 7px solid blue; }

.border-8 {
  border: 8px solid blue; }

.border-9 {
  border: 9px solid blue; }

.item-6 {
  width: 12em; }

.item-4 {
  width: 8em; }

.item-2 {
  width: 4em; }

.a {
  background-image: url("/image/a.jpg"); }

.b {
  background-image: url("/image/b.jpg"); }

.c {
  background-image: url("/image/c.jpg"); }

.d {
  background-image: url("/image/d.jpg"); }

#sidebar {
  width: 10px; }

a, b {
  margin-left: auto;
  margin-right: auto;
  display: block; }

a {
  background: pink;
  height: 10em; }

b {
  background: blue;
  height: 90px; }