.library-unit {
  align-items: center;
  border: 1px solid #ccc;
  display: flex;
  justify-content: center;
  position: relative;
  width: 63px;
  height: 63px; // match width
}

.library-unit__dragger {
  display: flex;
  height: 100%;
  width: 100%;
}

.library-unit__dragger > svg {
  flex-grow: 1;
  max-height: 100%;
  max-width: 100%;
}

.library-unit__removeFromLibrary,
.library-unit__removeFromLibrary:hover,
.library-unit__removeFromLibrary:active {
  align-items: center;
  background: none;
  border: none;
  display: flex;
  justify-content: center;
  margin: 0;
  padding: 0;
  position: absolute;
  right: 5px;
  top: 5px;
}

.library-unit__removeFromLibrary > svg {
  height: 16px;
  width: 16px;
}

.library-unit__pulse {
  transform: scale(1);
  animation: library-unit__pulse-animation 1s ease-in infinite;
}

.library-unit__adder {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 20px;
  height: 20px;
  margin-left: -10px;
  margin-top: -10px;
  pointer-events: none;
}

.library-unit__active {
  cursor: pointer;
}

@keyframes library-unit__pulse-animation {
  0% {
    transform: scale(0.95);
  }

  50% {
    transform: scale(1);
  }

  100% {
    transform: scale(0.95);
  }
}