@-webkit-keyframes click-wave {
  0% {
    width: 40px;
    height: 40px;
    opacity: 0.35;
    position: relative;
  }
  100% {
    width: 200px;
    height: 200px;
    margin-left: -80px;
    margin-top: -80px;
    opacity: 0.0;
  }
}
@-moz-keyframes click-wave {
  0% {
    width: 40px;
    height: 40px;
    opacity: 0.35;
    position: relative;
  }
  100% {
    width: 200px;
    height: 200px;
    margin-left: -80px;
    margin-top: -80px;
    opacity: 0.0;
  }
}
@-o-keyframes click-wave {
  0% {
    width: 40px;
    height: 40px;
    opacity: 0.35;
    position: relative;
  }
  100% {
    width: 200px;
    height: 200px;
    margin-left: -80px;
    margin-top: -80px;
    opacity: 0.0;
  }
}
@keyframes click-wave {
  0% {
    width: 40px;
    height: 40px;
    opacity: 0.35;
    position: relative;
  }
  100% {
    width: 200px;
    height: 200px;
    margin-left: -80px;
    margin-top: -80px;
    opacity: 0.0;
  }
}
.option-input {
  -webkit-appearance: none;
  -moz-appearance: none;
  -ms-appearance: none;
  -o-appearance: none;
  appearance: none;
  position: relative;
  top: 3px;
  width: 15px;
  height: 15px;
  -webkit-transition: all 0.15s ease-out 0;
  -moz-transition: all 0.15s ease-out 0;
  transition: all 0.15s ease-out 0;
  background: #FBD480;
  border: none;
  color: #fff;
  cursor: pointer;
  display: inline-block;
  outline: none;
  position: relative;
  margin-left: 1rem;
  z-index: 1000;
}
.option-input:hover {
  background: #9faab7;
}
.option-input:checked {
  background: #DA7D1C;
}
.option-input:checked::before {
  width: 15px;
  height: 15px;
  position: absolute;
/*  content: '\2716';*/
  content: '\2714';
  display: inline-block;
  font-size: 21px;
  text-align: center;
  line-height: 15px;
}
.option-input:checked::after {
  -webkit-animation: click-wave 0.65s;
  -moz-animation: click-wave 0.65s;
  animation: click-wave 0.65s;
  background: #EF8641;
  content: '';
  display: block;
  position: relative;
  z-index: 100;
}

.option-input.radio::after {
  border-radius: 50%;
}
body label {
  line-height: 40px;
}