@keyframes click-wave {
  0% {
    height: 20px;
    width: 20px;
    opacity: 0.35;
    position: relative;
  }
  100% {
    height: 50px;
    width: 50px;
    margin-left: -17px;
    margin-top: -17px;
    opacity: 0;
  }
}

.option-input {
  -webkit-appearance: none;
  -moz-appearance: none;
  -ms-appearance: none;
  -o-appearance: none;
  appearance: none;
  position: relative;
  height: 20px;
  width: 20px;
  transition: all 0.15s ease-out 0s;
  background: #fff;
  border: 1px solid #212529;
  color: #fff;
  cursor: pointer;
  display: inline-block;
  margin-right: 5px;
  outline: none;
  position: relative;
  z-index: 1000;
  vertical-align: middle;
}
.option-input:hover {
  background: #e4e4e4;
}
.option-input:checked {
  background: #00b271;
}
.option-input:checked::before {
  height: 20px;
  width: 20px;
  position: absolute;
  content: '✔';
  display: inline-block;
  font-size: 14px;
  text-align: center;
  line-height: 20px;
}
.option-input:checked::after {
  -webkit-animation: click-wave 0.65s;
  -moz-animation: click-wave 0.65s;
  animation: click-wave 0.65s;
  background: #25B8D7;
  content: '';
  display: block;
  position: relative;
  z-index: 100;
}

.option-input.radio {
  border-radius: 50%;
}
.option-input.radio::after {
  border-radius: 50%;
}