abe33/awesome_form

=vendor-prefix($property, $value)
  -webkit-#{$property}: #{$value}
  -moz-#{$property}: #{$value}
  -ms-#{$property}: #{$value}
  -o-#{$property}: #{$value}
  #{$property}: #{$value}

=opacity($trans)
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=#{$trans * 100})"
  filter: alpha(opacity=($trans * 100))

  +vendor-prefix(opacity, $trans)

=before($content: '')
  &:before
    content: $content
    @content

=after($content: '')
  &:after
    content: $content
    @content

=before-and-after($content: '')
  +before($content)
    @content

  +after($content)
    @content

=clearfix($height: 0)
  &:after
    content: "."
    display: block
    height: $height
    clear: both
    visibility: hidden

=force-gpu
  transform: translate3d(0,0,0)