/* Hide the default checkbox */
.container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.container {
  display: inline-block;
  position: relative;
  cursor: pointer;
  font-size: 20px;
  user-select: none;
  width: 24px;
  height: 24px;
}

  /* Create a custom checkbox */
.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: #fff;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: background-color 0.3s ease;
  z-index: 1;
}

.glass-effect {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  height: 14px;
  width: 14px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transition: transform 0.3s ease;
  z-index: 2;
}

  /* When the checkbox is checked, add a blue background */
.container input:checked ~ .checkmark {
  background-color: #2196F3;
}

  /* Show the glass effect when checked */
.container input:checked ~ .glass-effect {
  transform: translate(-50%, -50%) scale(1);
}

  /* Create the checkmark/indicator (hidden when not checked) */
.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

  /* Show the checkmark when checked */
.container input:checked ~ .checkmark:after {
  display: block;
}

  /* Style the checkmark/indicator */
.container .checkmark:after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: translate(-50%, -50%) rotate(45deg);
}