@charset "UTF-8";

.demo1 {
  padding: 6px;
}
  .demo1 input[type=checkbox] {
    display: none;
    margin: 0;
  }
  .demo1 input[type=checkbox]+label {
    position: relative;
    display: inline-block;
    margin-right: 12px;
    font-size: 14px;
    line-height: 30px;
    cursor: pointer;
    padding: 0 0 0 24px;
  }
  .demo1 input[type=checkbox]+label:before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    display: block;
    width: 18px;
    height: 18px;
    margin-top: -9px;
    background: url("../img/checkbox.png") no-repeat left top/contain;
  }
  .demo1 input[type=checkbox]:checked + label:before {
    background: url("../img/checkbox-on.png") no-repeat left top/contain;
  }