CSS Checkbox & Radio Generator

.custom-checkbox {
  position: relative;
  display: inline-block;
  width: 16px;
  height: 16px;
}

.custom-checkbox input {
  opacity: 0;
  position: absolute;
  width: 0;
  height: 0;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 16px;
  width: 16px;
  background-color: #fff;
  border: 2px solid #d1d5db;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.custom-checkbox:hover input ~ .checkmark {
  border-color: #0071e3;
}

.custom-checkbox input:checked ~ .checkmark {
  background-color: #0071e3;
  border-color: #0071e3;
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
  left: 4.8px;
  top: 1.6px;
  width: 4.8px;
  height: 9.6px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.custom-checkbox input:checked ~ .checkmark:after {
  display: block;
}