assemblymade/coderwall

@mixin clearfix {
  &:before,&:after {
      content: "";
      display: table;
  }
  &:after {
      clear: both;
  }
}

@function em($target, $context: $baseFontSize) {
  @if $target == 0 {
    @return 0;
  }
  @return $target / $context + 0em;
}

@mixin transition {
  -webkit-transition: all 0.35s ease;
     -moz-transition: all 0.35s ease;
       -o-transition: all 0.35s ease;
          transition: all 0.35s ease;
}

@mixin vertical {
  position: absolute;
  top: 50%;
  -webkit-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
}