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input[type="radio"] {
  display: none;
}

input[type="radio"] + label {
  display: block;
  position: relative;
  font-size: 20px;
  padding-left: 30px;
  margin-bottom: 20px;
}

input[type="radio"] + label::before {
  content: '';
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  width: 25px;
  height: 25px;
  background-image: url('../img/spr.png');
  background-repeat: no-repeat;
  background-position: 75px 0;
}

input[type="radio"]:checked + label::before {
  background-position: -75px 0;
}