assets/stylesheets/bootstrap/mixins/_hover.scss


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@mixin hover {
  // TODO: re-enable along with mq4-hover-shim
//  @if $enable-hover-media-query {
//    // See Media Queries Level 4: https://drafts.csswg.org/mediaqueries/#hover
//    // Currently shimmed by https://github.com/twbs/mq4-hover-shim
//    @media (hover: hover) {
//      &:hover { @content }
//    }
//  }
//  @else {
    &:hover { @content }
//  }
}

@mixin hover-focus {
  @if $enable-hover-media-query {
    &:focus { @content }
    @include hover { @content }
  }
  @else {
    &:focus,
    &:hover {
      @content
    }
  }
}

@mixin plain-hover-focus {
  @if $enable-hover-media-query {
    &,
    &:focus {
      @content
    }
    @include hover { @content }
  }
  @else {
    &,
    &:focus,
    &:hover {
      @content
    }
  }
}

@mixin hover-focus-active {
  @if $enable-hover-media-query {
    &:focus,
    &:active {
      @content
    }
    @include hover { @content }
  }
  @else {
    &:focus,
    &:active,
    &:hover {
      @content
    }
  }
}