css 公共抽取

@mixin font-size-custom() {

content: '';

width: 32px;

height: 32px;

display: block;

}

.ion-ios-wenzhen:before {

@include font-size-custom;

background: no-repeat url('../assets/imgs/wenzhenbefore.png');

}

//scss

@mixin box-size($width:100px,$height:100px) {

width: $width;

height: $height;

}

.demo{

@include box-size;

}

.demo2{

@include box-size(200px,300px);

}