.radio-button {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  border: 1px solid #707070;
  -webkit-transition: border-color 0.2s;
  transition: border-color 0.2s;
}
.check-icon {
  position: absolute;
  top: 0.25rem;
  left: 0.25rem;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
}
.selected .check-icon {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}