howbig is an html checkbox code example

Example: how to make a check bigger

.double {
  zoom: 2;
  transform: scale(2);
  -ms-transform: scale(2);
  -webkit-transform: scale(2);
  -o-transform: scale(2);
  -moz-transform: scale(2);
  transform-origin: 0 0;
  -ms-transform-origin: 0 0;
  -webkit-transform-origin: 0 0;
  -o-transform-origin: 0 0;
  -moz-transform-origin: 0 0;
}