My CSS trick in creating a custom radio button

custom_radio_button.scss

input[type="radio"] {
  position: absolute;
  left: -9999px;
}

.label {
  display: block;
  position: relative;
  margin-left: 0;
  padding: 3px 0 3px 25px;
  cursor: pointer;
  font-size: 14px;

  &::before, &::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
  }

  &::before {
    display: block;
    width: 20px;
    height: 20px;
    border: .2rem solid #2B7DB6;
    box-sizing: border-box;
  }

  &::after {
    display: none;
    width: 12px;
    height: 12px;
    margin: 4px;
    background-color: #2B7DB6;
  }
}

input[type="radio"] + label::before,
input[type="radio"] + label::after {
  border-radius: 50%;
}

input:checked + label::after {
  display: block;
}