/// Creates a fade transition by adjusting the opacity of the element. /// @param {Keyword} $state [in] - State to transition to. /// @param {Number} $from [0] - Opacity to start at. Must be a number between 0 and 1. /// @param {Number} $to [1] - Opacity to end on. /// @param {Keyword} $duration [null] - Length (speed) of the transition. /// @param {Keyword|Function} $timing [null] - Easing of the transition. /// @param {Duration} $delay [null] - Delay in seconds or milliseconds before the transition starts. @mixin mui-fade(

$state: in,
$from: 0,
$to: 1,
$duration: null,
$timing: null,
$delay: null

) {

$fade: fade($from, $to);

@include transition-start($state) {
  @include transition-basics($duration, $timing, $delay);
  @include -mui-keyframe-get($fade, 0);

  transition-property: opacity;
}

@include transition-end($state) {
  @include -mui-keyframe-get($fade, 100);
}

}