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path: root/browser/components/newtab/content-src/styles/_mixins.scss
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// Shared styling of article images shown as background
@mixin image-as-background {
  background-color: var(--newtab-element-secondary-color);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  border-radius: 4px;
  box-shadow: $shadow-image-inset;
}

// Note: lineHeight and fontSize should be unitless but can be derived from pixel values
// Bug 1550624 to clean up / remove this mixin to avoid duplicate styles
@mixin limit-visible-lines($line-count, $line-height, $font-size) {
  font-size: $font-size * 1px;
  -webkit-line-clamp: $line-count;
  line-height: $line-height * 1px;
}

@mixin dark-theme-only {
  [lwt-newtab-brighttext] & {
    @content;
  }
}

@mixin ds-border-top {
  @content;

  @include dark-theme-only {
    border-top: 1px solid $grey-60;
  }

  border-top: 1px solid $grey-30;
}

@mixin ds-border-bottom {
  @content;

  @include dark-theme-only {
    border-bottom: 1px solid $grey-60;
  }

  border-bottom: 1px solid $grey-30;
}

@mixin ds-fade-in($halo-color: $blue-50-30) {
  box-shadow: 0 0 0 5px $halo-color;
  transition: box-shadow 150ms;
  border-radius: 4px;
  outline: none;
}