message: Increase check item size
diff: background-position: center;
  border: 0.21em solid;
  border-color: $main-black-color;
  - height: 1.7em;
  + height: 1.8em;
  opacity: 0.5;
  position: relative;
  - width: 1.7em;
  + width: 1.8em;
  }
  .sv-check-item:checked {
  opacity: 1;
  