CSS Only Checkbox

dabblet.css

/*
 * CSS Only Checkbox
 */

div {
	color: #333;
	margin-bottom: 1em;
}

div.large {
	font-size: 1.4em;
}

div.small {
	font-size: .7em;
}

input[type="checkbox"], input[type="checkbox"] + label {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

input[type="checkbox"] {
  position: absolute;
  margin: 0;
  width: 1em;
  height: 1em;
  opacity: 0;
  cursor: pointer;
}

input[type="checkbox"] + label:before {
  display: inline-block;
  margin: 0 .5em 0 0;
  width: 1em;
  height: 1em;
  border-top: 1px solid #c3c3c3;
  border-right: 1px solid #d6d6d6;
  border-bottom: 1px solid #d7d7d7;
  border-left: 1px solid #c8c8c8;
  background-color: #fff;
  color: #191919;
  color: rgba(0, 0, 0, 0.75);
  content: "";
  vertical-align: top;
  font-family: inherit;
  cursor: pointer;
}

input[type="checkbox"] + label,
input[type="checkbox"] + label:before,
input[type="checkbox"] + label:after {
  transition: box-shadow .45s, border-color .45s ease-in-out, color .25s ease-in-out;
}

input[type="checkbox"]:hover + label:before {
  border-top-color: #8a8a8a;
  border-right-color: #adadad;
  border-bottom-color: #b4b4b4;
  border-left-color: #949494;
  box-shadow: inset 0 1px 2px 0 rgba(0, 0, 0, .1);
}

input[type="checkbox"]:focus + label:before {
  outline: none;
  border-color: #d23f29;
  box-shadow: inset 0 1px 3px 0 rgba(0, 0, 0, .2), 0 0 5px rgba(210, 63, 41, .4);
}

input[type="checkbox"] + label:after {
  position: absolute;
  top: 0;
  left: .05em;
  margin: -3px 0 0 3px;
  color: rgba(102, 102, 102, 0);
  content: "\2713";
  font-weight: normal;
  font-size: 1.2em;
}

input[type="checkbox"]:checked + label:after {
  color: #666;
  text-shadow: 0 0 2px #fff;
}

input[type="checkbox"]:hover + label,
input[type="checkbox"]:focus + label {
  color: #000;
}

input[type="checkbox"]:hover + label:after,
input[type="checkbox"]:focus + label:after {
  color: rgba(102, 102, 102, .1);
}

input[type="checkbox"]:checked:hover + label:after,
input[type="checkbox"]:checked:focus + label:after {
  color: #000;
}

dabblet.html

<div class="small">
	<input id="check1" type="checkbox" />
	<label for="check1">Stay here with me</label>
</div>

<div>
	<input id="check2" type="checkbox" checked />
	<label for="check2">Remember my password</label>
</div>

<div class="large">
	<input id="check3" type="checkbox" />
	<label for="check3">Keep my connection alive</label>
</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split","fontsize":"90","seethrough":"","prefixfree":"1","page":"all"}