checkbox 이미지 처리

<div class="checkbox-control">
  <input type="checkbox" id="saveId">
  <label for="saveId">아이디 저장</label>
</div>

.checkbox-control input+label {
  display: block; 
  width: 154px; 
  height: 24px; 
  padding-left: 35px;
  background: url(../img/uncheck.png) no-repeat 0 0px / contain;
}
.checkbox-control input:checked+label {
  background: url(../img/check.png) no-repeat 0 0px / contain;
}
.checkbox-control input {
  display: none;
}