electionDashboard/target/classes/static/assets/_scss/dashmix/_overlay.scss

//
// Overlay
// --------------------------------------------------

// Icon Overlay
.overlay-container {
  position: relative;
}

.overlay-item {
  position: absolute;
  display: inline-block;
  top: 0;
  right: 0;
  line-height: 1;

  .overlay-left & {
    right: auto;
    left: 0;
  }

  .overlay-bottom & {
    top: auto;
    bottom: 0;
  }

  .overlay-center & {
    top: 50%;
    right: 50%;
    transform: translateX(50%) translateY(-50%);
  }
}

// Options Overlay
.options-container {
  position: relative;
  overflow: hidden;
  z-index: 1;
  display: block;

  .options-item {
    transition: transform .4s ease-out;
    will-change: transform;
  }

  .options-overlay {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: -2px;
    right: -2px;
    bottom: -2px;
    left: -2px;
    z-index: 2;
    content: '';
    opacity: 0;
    visibility: hidden;
    transition: all .15s ease-in;
    will-change: opacity, transform;

    &-content {
      text-align: center;
    }
  }

  &:hover {
    .options-overlay {
      opacity: 1;
      visibility: visible;
    }
  }

  @include media-breakpoint-down(md) {
    .options-overlay {
      display: none;
    }

    &:hover .options-overlay {
      display: flex;
    }
  }
}

// Item hover effects
.fx-item-zoom-in:hover .options-item {
  transform: scale(1.2, 1.2);
}

.fx-item-rotate-r:hover .options-item {
  transform: scale(1.4) rotate(8deg);
}

.fx-item-rotate-l:hover .options-item {
  transform: scale(1.4) rotate(-8deg);
}

// Overlay hover effects
.fx-overlay-slide-top {
  .options-overlay {
    transform: translateY(100%);
  }

  &:hover .options-overlay {
    transform: translateY(0);
  }
}

.fx-overlay-slide-right {
  .options-overlay {
    transform: translateX(-100%);
  }

  &:hover .options-overlay {
    transform: translateX(0);
  }
}

.fx-overlay-slide-down {
  .options-overlay {
    transform: translateY(-100%);
  }

  &:hover .options-overlay {
    transform: translateY(0);
  }
}

.fx-overlay-slide-left {
  .options-overlay {
    transform: translateX(100%);
  }

  &:hover .options-overlay {
    transform: translateX(0);
  }
}

.fx-overlay-zoom-in {
  .options-overlay {
    transform: scale(0, 0);
  }

  &:hover .options-overlay {
    transform: scale(1, 1);
  }
}

.fx-overlay-zoom-out {
  .options-overlay {
    transform: scale(2, 2);
  }

  &:hover .options-overlay {
    transform: scale(1, 1);
  }
}