css

scss - 按屏幕参数应用内容

@mixin mQ($arg...) {
  @if length($arg) == 1 {
    @media screen and (max-width: nth($arg,1)) {
      @content;
    }
  }
  @if length($arg) == 2 {
    @media screen and (max-width: nth($arg,1)) and (min-width: nth($arg,2)) {
      @content;
    }
  }
}

@include mQ(687px){}
@include mQ(687px,1028px){}