gab-social/app/javascript/gabsocial/components/icon_button/index.scss

.icon-button {
  display: inline-block;
  padding: 0;
  color: $gab-secondary-text;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: color 100ms ease-in;

  &:hover,
  &:active,
  &:focus {
    color: lighten($action-button-color, 7%);
    transition: color 200ms ease-out;
  }

  &.disabled {
    color: darken($action-button-color, 13%);
    cursor: default;
  }

  &.active {
    color: $highlight-text-color;
  }

  &::-moz-focus-inner {
    border: 0;
  }

  &::-moz-focus-inner,
  &:focus,
  &:active {
    outline: 0 !important;
  }

  &.inverted {
    color: $gab-secondary-text;

    &:hover,
    &:active,
    &:focus {
      color: darken($lighter-text-color, 7%);
    }

    &.disabled {
      color: lighten($lighter-text-color, 7%);
    }

    &.active {
      color: $highlight-text-color;

      &.disabled {
        color: lighten($highlight-text-color, 13%);
      }
    }
  }

  &.overlayed {
    box-sizing: content-box;
    background: rgba($base-overlay-background, 0.6);
    color: rgba($primary-text-color, 0.7);
    border-radius: 4px;
    padding: 2px;

    &:hover {
      background: rgba($base-overlay-background, 0.9);
    }
  }
}