sass 的使用心得

//定义颜色
$c55:#555;
$c22:#222;
$c33:#333;
$c99:#999;
$c77:#777;
$c00:#000;
$cff:#fff;
$caa:#aaa;
$ccc:#ccc;
$cf0:#f0f0f0;
$cdd:#ddd;
$cee:#eee;
$cf9:#f9f9f9;
$cf7:#F7F7F7;
$cfa:#fafafa;
$cf60:#FF8225;
$c2a:#2a3542;
$c35:#35404d;
$c1d:#1DA1F2;
$cff0:#ff0000;
$c02:#02c12a;
$cf4:#f4f4f4;
$cbbe:#bbe3fb;
$cde :#dedede;

// 背景图片地址和大小
@mixin bjs($url) {
  background-image: url($url);
  background-repeat: no-repeat;
  background-size: 350px 250px;
}
//定义magin
@mixin setMargin($left, $right, $bottom,$top){
  margin:$top $right $bottom $left;
}
//定义padding
@mixin setPadding($left, $right, $bottom,$top){
  padding:$top $right $bottom $left;
}
//居中
@mixin  jz {
  position:absolute;
  left:0;
  bottom:0;
  margin:0;
  padding:0;
}

//定义圆角
@mixin borderRadius($radius) {
  -webkit-border-radius: $radius;
  -moz-border-radius: $radius;
  -ms-border-radius: $radius;
  -o-border-radius: $radius;
  border-radius: $radius;
}
//定位全屏
@mixin allcover{
  position:absolute;
  top:0;
  right:0;
}

//定位上下左右居中
@mixin center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

//定位上下居中
@mixin ct {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

//定位上下居中
@mixin cl {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

//宽高
@mixin wh($width, $height){
   $width;
  height: $height;
}
@mixin center($width,$height){
   $width;
  height: $height;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -($height) / 2;
  margin-left: -($width) / 2;
}
//字体大小、行高、字体
@mixin font($size, $line-height, $family: 'Microsoft YaHei') {
  font: #{$size}/#{$line-height} $family;
}

//字体大小，颜色
@mixin sc($size, $color){
  font-size: $size;
  color: $color;
}

//flex 布局和 子元素 对其方式
@mixin fj($type: space-between){
  display: flex;
  justify-content: $type;

}
@mixin ns{
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

@mixin hlh($s1) {
  height: $s1;
  line-height: $s1;
  overflow: hidden;
}
@mixin thl($s2,$s3){
  height:$s2;
  line-height: $s3;
  text-align: center;
}

// one line text for ...
@mixin oneline($s1) {
  overflow: hidden;
  line-height: $s1;
  height: $s1;
  white-space: nowrap;
  text-overflow: ellipsis;
}

// move
@mixin yd($s1:0,$s2:0){
  -webkit-transform:translate($s1,$s2);
  transform:translate($s1,$s2);
}

// zoom
@mixin fd($s1:1.2){
  -webkit-transform:scale($s1);
  transform:scale($s1);
}

// rotate
@mixin xz($deg:360){
  -webkit-transform:rotate($deg+deg);
  transform:rotate($deg+deg);
}

// for link
@mixin dz($time:0.25s){
  -webkit-transition: all $time ease-in-out;
  transition: all $time ease-in-out;
}
//同时设置magin padding
$properties: (margin, padding);
@mixin set-value($side, $value) {
  @each $prop in $properties {
    #{$prop}-#{$side}: $value;
  }
}
//设置magin 和 padding
@mixin set-mp($prop,$side, $value) {
    #{$prop}-#{$side}: $value;
}

%mt5 {
  margin-top: 5px;
}
%mt10 {
  margin-top: 10px;
}
%mt15 {
  margin-top: 15px;
}
%pt5{
  padding-top: 5px;
}
%pl10{
  padding-left:10px;
}