.BS4Radio {
  display: block;
  position: relative;
  padding-left: 35px;
  margin-bottom: 12px;
  cursor: pointer;
  font-size: 22px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 27px;
  width: 27px;
  background-color: #eee;
  border: 1px solid #2196F3;
  border-radius: 50%;
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.BS4Radio .checkmark:after {
  top: 9px;
  left: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: white;
}