Simple checkbox label turns into rocker switch. Added a little light so you know when it's on

index.html

<div action="" class="m-rocker">
  <input id="switch" type="checkbox"><label for="switch">Switch</label>
  <input id="switch2" type="checkbox"><label for="switch2">Switch</label>
  <input id="switch3" type="checkbox"><label for="switch3">Switch</label>
</div>

style.css

body { background-color:#444; box-shadow:inset 0px 0px 80px #000; text-align:center; width:100%; height:500px; padding-top:20px; margin:0;}

.m-rocker {
 font-size:180%
}

.m-rocker:not(:checked) > input {
          position: absolute;
          top: -9999px;
	        clip: rect(0,0,0,0);
}

.m-rocker:not(:checked) > label:before {
  content:'';
  display:block;
  background-color:green;
  width:40%;
  height:2px;
  margin:0 5%;
  position:absolute;
  top:0;
  left:0;
}

.m-rocker:not(:checked) > label {
      background-color:#222;
        border-color:#445 #334 #223;
  border-width:.25em;
  border-style:solid;
  border-radius:.2em;
			cursor: pointer;
			display: inline-block;
			padding: 0 .5em;
    margin-right:1em;
  position:relative;
			text-indent: -5000px;
			width:1.5em;
			height:3.5em;
}

/* on */

.m-rocker:not(:checked) > input:checked + label:before {
  background-color:lime;
  box-shadow:0 0 4px #eeffee, 0 0 6px #DDFFDD, 0 0 12px #DDFFDD;
  top:20%;
}

.m-rocker:not(:checked) > input:checked + label {
background: #eeeeee; /* Old browsers */
background: -moz-linear-gradient(top,  #eeeeee 0%, #efefef 12%, #999999 15%, #111111 50%, #444444 95%, #111111 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#eeeeee), color-stop(12%,#efefef), color-stop(15%,#999999), color-stop(50%,#111111), color-stop(95%,#444444), color-stop(100%,#111111)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #eeeeee 0%,#efefef 12%,#999999 15%,#111111 50%,#444444 95%,#111111 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #eeeeee 0%,#efefef 12%,#999999 15%,#111111 50%,#444444 95%,#111111 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #eeeeee 0%,#efefef 12%,#999999 15%,#111111 50%,#444444 95%,#111111 100%); /* IE10+ */
background: linear-gradient(to bottom,  #eeeeee 0%,#efefef 12%,#999999 15%,#111111 50%,#444444 95%,#111111 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#eeeeee', endColorstr='#111111',GradientType=0 ); /* IE6-9 */

}

/* on - hover */
.m-rocker:not(:checked) > input:checked + label:active:before {
  top:17%;
}

.m-rocker:not(:checked) > input:checked + label:active {
background: #eeeeee; /* Old browsers */
background: -moz-linear-gradient(top,  #eeeeee 0%, #efefef 8%, #999999 11%, #111111 50%, #444444 92%, #111111 95%, #111111 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#eeeeee), color-stop(8%,#efefef), color-stop(11%,#999999), color-stop(50%,#111111), color-stop(92%,#444444), color-stop(95%,#111111), color-stop(100%,#111111)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #eeeeee 0%,#efefef 8%,#999999 11%,#111111 50%,#444444 92%,#111111 95%,#111111 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #eeeeee 0%,#efefef 8%,#999999 11%,#111111 50%,#444444 92%,#111111 95%,#111111 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #eeeeee 0%,#efefef 8%,#999999 11%,#111111 50%,#444444 92%,#111111 95%,#111111 100%); /* IE10+ */
background: linear-gradient(to bottom,  #eeeeee 0%,#efefef 8%,#999999 11%,#111111 50%,#444444 92%,#111111 95%,#111111 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#eeeeee', endColorstr='#111111',GradientType=0 ); /* IE6-9 */

}

/* off */

.m-rocker input:not(:checked) + label:before {
  background-color:darkgreen;
  top:4%;
}

.m-rocker input:not(:checked) + label {
background: #eeeeee; /* Old browsers */
background: -moz-linear-gradient(top,  #eeeeee 0%, #999999 2%, #111111 50%, #444444 78%, #565656 85%, #111111 87%, #000000 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#eeeeee), color-stop(2%,#999999), color-stop(50%,#111111), color-stop(78%,#444444), color-stop(85%,#565656), color-stop(87%,#111111), color-stop(100%,#000000)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #eeeeee 0%,#999999 2%,#111111 50%,#444444 78%,#565656 85%,#111111 87%,#000000 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #eeeeee 0%,#999999 2%,#111111 50%,#444444 78%,#565656 85%,#111111 87%,#000000 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #eeeeee 0%,#999999 2%,#111111 50%,#444444 78%,#565656 85%,#111111 87%,#000000 100%); /* IE10+ */
background: linear-gradient(to bottom,  #eeeeee 0%,#999999 2%,#111111 50%,#444444 78%,#565656 85%,#111111 87%,#000000 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#eeeeee', endColorstr='#000000',GradientType=0 ); /* IE6-9 */

}

/* off - down */

.m-rocker input:not(:checked) + label:active:before {
  margin-top:3%;
}

.m-rocker input:not(:checked) + label:active {
 background: #eeeeee; /* Old browsers */
background: -moz-linear-gradient(top,  #eeeeee 0%, #ffffff 3%, #999999 5%, #111111 50%, #444444 89%, #111111 92%, #000000 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#eeeeee), color-stop(3%,#ffffff), color-stop(5%,#999999), color-stop(50%,#111111), color-stop(89%,#444444), color-stop(92%,#111111), color-stop(100%,#000000)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  #eeeeee 0%,#ffffff 3%,#999999 5%,#111111 50%,#444444 89%,#111111 92%,#000000 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top,  #eeeeee 0%,#ffffff 3%,#999999 5%,#111111 50%,#444444 89%,#111111 92%,#000000 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top,  #eeeeee 0%,#ffffff 3%,#999999 5%,#111111 50%,#444444 89%,#111111 92%,#000000 100%); /* IE10+ */
background: linear-gradient(to bottom,  #eeeeee 0%,#ffffff 3%,#999999 5%,#111111 50%,#444444 89%,#111111 92%,#000000 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#eeeeee', endColorstr='#000000',GradientType=0 ); /* IE6-9 */


}