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HTML

              
                <h1>CSS3 Checkbox Styles</h1>

<!-- Slide ONE -->
<div class="slideOne">	
	<input type="checkbox" value="None" id="slideOne" name="check" />
	<label for="slideOne"></label>
</div>

<!-- Slide TWO -->
<div class="slideTwo">	
	<input type="checkbox" value="None" id="slideTwo" name="check" />
	<label for="slideTwo"></label>
</div>

<!-- Slide THREE -->
<div class="slideThree">	
	<input type="checkbox" value="None" id="slideThree" name="check" />
	<label for="slideThree"></label>
</div>

<!-- Rounded ONE -->
<div class="roundedOne">
	<input type="checkbox" value="None" id="roundedOne" name="check" />
	<label for="roundedOne"></label>
</div>

<!-- Rounded TWO -->
<div class="roundedTwo">
	<input type="checkbox" value="None" id="roundedTwo" name="check" />
	<label for="roundedTwo"></label>
</div>

<!-- Squared ONE -->
<div class="squaredOne">
	<input type="checkbox" value="None" id="squaredOne" name="check" />
	<label for="squaredOne"></label>
</div>

<!-- Squared TWO -->
<div class="squaredTwo">
	<input type="checkbox" value="None" id="squaredTwo" name="check" />
	<label for="squaredTwo"></label>
</div>

<!-- Squared THREE -->
<div class="squaredThree">
	<input type="checkbox" value="None" id="squaredThree" name="check" />
	<label for="squaredThree"></label>
</div>

<!-- Squared FOUR -->
<div class="squaredFour">
	<input type="checkbox" value="None" id="squaredFour" name="check" />
	<label for="squaredFour"></label>
</div>

              
            
!

CSS

              
                body {
	background: #555;
}

h1 {
	color: #eee;
	font: 30px Arial, sans-serif;
	-webkit-font-smoothing: antialiased;
	text-shadow: 0px 1px black;
	text-align: center;
	margin-bottom: 50px;
}

input[type=checkbox] {
	visibility: hidden;
}

/* SLIDE ONE */
.slideOne {
	width: 50px;
	height: 10px;
	background: #333;
	margin: 20px auto;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	position: relative;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
}

.slideOne label {
	display: block;
	width: 16px;
	height: 16px;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;

	-webkit-transition: all .4s ease;
	-moz-transition: all .4s ease;
	-o-transition: all .4s ease;
	-ms-transition: all .4s ease;
	transition: all .4s ease;
	cursor: pointer;
	position: absolute;
	top: -3px;
	left: -3px;

	-webkit-box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	-moz-box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
}

.slideOne input[type=checkbox]:checked + label {
	left: 37px;
}

/* SLIDE TWO */
.slideTwo {
	width: 80px;
	height: 30px;
	background: #333;
	margin: 20px auto;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	position: relative;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
}

.slideTwo:after {
	content: '';
	position: absolute;
	top: 14px;
	left: 14px;
	height: 2px;
	width: 52px;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	background: #111;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
}

.slideTwo label {
	display: block;
	width: 22px;
	height: 22px;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;

	-webkit-transition: all .4s ease;
	-moz-transition: all .4s ease;
	-o-transition: all .4s ease;
	-ms-transition: all .4s ease;
	transition: all .4s ease;
	cursor: pointer;
	position: absolute;
	top: 4px;
	z-index: 1;
	left: 4px;

	-webkit-box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	-moz-box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
}

.slideTwo label:after {
	content: '';
	position: absolute;
	width: 10px;
	height: 10px;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	background: #333;
	left: 6px;
	top: 6px;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,1), 0px 1px 0px rgba(255,255,255,0.9);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,1), 0px 1px 0px rgba(255,255,255,0.9);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,1), 0px 1px 0px rgba(255,255,255,0.9);
}

.slideTwo input[type=checkbox]:checked + label {
	left: 54px;
}

.slideTwo input[type=checkbox]:checked + label:after {
	background: #00bf00;
}

/* SLIDE THREE */
.slideThree {
	width: 80px;
	height: 26px;
	background: #333;
	margin: 20px auto;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	position: relative;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,0.2);
}

.slideThree:after {
	content: 'OFF';
	font: 12px/26px Arial, sans-serif;
	color: #000;
	position: absolute;
	right: 10px;
	z-index: 0;
	font-weight: bold;
	text-shadow: 1px 1px 0px rgba(255,255,255,.15);
}

.slideThree:before {
	content: 'ON';
	font: 12px/26px Arial, sans-serif;
	color: #00bf00;
	position: absolute;
	left: 10px;
	z-index: 0;
	font-weight: bold;
}

.slideThree label {
	display: block;
	width: 34px;
	height: 20px;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;

	-webkit-transition: all .4s ease;
	-moz-transition: all .4s ease;
	-o-transition: all .4s ease;
	-ms-transition: all .4s ease;
	transition: all .4s ease;
	cursor: pointer;
	position: absolute;
	top: 3px;
	left: 3px;
	z-index: 1;

	-webkit-box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	-moz-box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	box-shadow: 0px 2px 5px 0px rgba(0,0,0,0.3);
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
}

.slideThree input[type=checkbox]:checked + label {
	left: 43px;
}

/* ROUNDED ONE */
.roundedOne {
	width: 28px;
	height: 28px;
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
	margin: 20px auto;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;

	-webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	-moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	position: relative;
}

.roundedOne label {
	cursor: pointer;
	position: absolute;
	width: 20px;
	height: 20px;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	left: 4px;
	top: 4px;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);

	background: -webkit-linear-gradient(top, #222 0%, #45484d 100%);
	background: -moz-linear-gradient(top, #222 0%, #45484d 100%);
	background: -o-linear-gradient(top, #222 0%, #45484d 100%);
	background: -ms-linear-gradient(top, #222 0%, #45484d 100%);
	background: linear-gradient(top, #222 0%, #45484d 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#222', endColorstr='#45484d',GradientType=0 );
}

.roundedOne label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
	filter: alpha(opacity=0);
	opacity: 0;
	content: '';
	position: absolute;
	width: 16px;
	height: 16px;
	background: #00bf00;

	background: -webkit-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: -moz-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: -o-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: -ms-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: linear-gradient(top, #00bf00 0%, #009400 100%);

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	top: 2px;
	left: 2px;

	-webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	-moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
}

.roundedOne label:hover::after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
	filter: alpha(opacity=30);
	opacity: 0.3;
}

.roundedOne input[type=checkbox]:checked + label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
	filter: alpha(opacity=100);
	opacity: 1;
}

/* ROUNDED TWO */
.roundedTwo {
	width: 28px;
	height: 28px;
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
	margin: 20px auto;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;

	-webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	-moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	position: relative;
}

.roundedTwo label {
	cursor: pointer;
	position: absolute;
	width: 20px;
	height: 20px;

	-webkit-border-radius: 50px;
	-moz-border-radius: 50px;
	border-radius: 50px;
	left: 4px;
	top: 4px;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);

	background: -webkit-linear-gradient(top, #222 0%, #45484d 100%);
	background: -moz-linear-gradient(top, #222 0%, #45484d 100%);
	background: -o-linear-gradient(top, #222 0%, #45484d 100%);
	background: -ms-linear-gradient(top, #222 0%, #45484d 100%);
	background: linear-gradient(top, #222 0%, #45484d 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#222', endColorstr='#45484d',GradientType=0 );
}

.roundedTwo label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
	filter: alpha(opacity=0);
	opacity: 0;
	content: '';
	position: absolute;
	width: 9px;
	height: 5px;
	background: transparent;
	top: 5px;
	left: 4px;
	border: 3px solid #fcfff4;
	border-top: none;
	border-right: none;

	-webkit-transform: rotate(-45deg);
	-moz-transform: rotate(-45deg);
	-o-transform: rotate(-45deg);
	-ms-transform: rotate(-45deg);
	transform: rotate(-45deg);
}

.roundedTwo label:hover::after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
	filter: alpha(opacity=30);
	opacity: 0.3;
}

.roundedTwo input[type=checkbox]:checked + label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
	filter: alpha(opacity=100);
	opacity: 1;
}

/* SQUARED ONE */
.squaredOne {
	width: 28px;
	height: 28px;
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
	margin: 20px auto;
	-webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	-moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	position: relative;
}

.squaredOne label {
	cursor: pointer;
	position: absolute;
	width: 20px;
	height: 20px;
	left: 4px;
	top: 4px;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);

	background: -webkit-linear-gradient(top, #222 0%, #45484d 100%);
	background: -moz-linear-gradient(top, #222 0%, #45484d 100%);
	background: -o-linear-gradient(top, #222 0%, #45484d 100%);
	background: -ms-linear-gradient(top, #222 0%, #45484d 100%);
	background: linear-gradient(top, #222 0%, #45484d 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#222', endColorstr='#45484d',GradientType=0 );
}

.squaredOne label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
	filter: alpha(opacity=0);
	opacity: 0;
	content: '';
	position: absolute;
	width: 16px;
	height: 16px;
	background: #00bf00;

	background: -webkit-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: -moz-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: -o-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: -ms-linear-gradient(top, #00bf00 0%, #009400 100%);
	background: linear-gradient(top, #00bf00 0%, #009400 100%);

	top: 2px;
	left: 2px;

	-webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	-moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
}

.squaredOne label:hover::after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
	filter: alpha(opacity=30);
	opacity: 0.3;
}

.squaredOne input[type=checkbox]:checked + label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
	filter: alpha(opacity=100);
	opacity: 1;
}

/* SQUARED TWO */
.squaredTwo {
	width: 28px;
	height: 28px;
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
	margin: 20px auto;

	-webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	-moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	position: relative;
}

.squaredTwo label {
	cursor: pointer;
	position: absolute;
	width: 20px;
	height: 20px;
	left: 4px;
	top: 4px;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,1);

	background: -webkit-linear-gradient(top, #222 0%, #45484d 100%);
	background: -moz-linear-gradient(top, #222 0%, #45484d 100%);
	background: -o-linear-gradient(top, #222 0%, #45484d 100%);
	background: -ms-linear-gradient(top, #222 0%, #45484d 100%);
	background: linear-gradient(top, #222 0%, #45484d 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#222', endColorstr='#45484d',GradientType=0 );
}

.squaredTwo label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
	filter: alpha(opacity=0);
	opacity: 0;
	content: '';
	position: absolute;
	width: 9px;
	height: 5px;
	background: transparent;
	top: 4px;
	left: 4px;
	border: 3px solid #fcfff4;
	border-top: none;
	border-right: none;

	-webkit-transform: rotate(-45deg);
	-moz-transform: rotate(-45deg);
	-o-transform: rotate(-45deg);
	-ms-transform: rotate(-45deg);
	transform: rotate(-45deg);
}

.squaredTwo label:hover::after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
	filter: alpha(opacity=30);
	opacity: 0.3;
}

.squaredTwo input[type=checkbox]:checked + label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
	filter: alpha(opacity=100);
	opacity: 1;
}


/* SQUARED THREE */
.squaredThree {
	width: 20px;	
	margin: 20px auto;
	position: relative;
}

.squaredThree label {
	cursor: pointer;
	position: absolute;
	width: 20px;
	height: 20px;
	top: 0;
	border-radius: 4px;

	-webkit-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,.4);
	-moz-box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,.4);
	box-shadow: inset 0px 1px 1px rgba(0,0,0,0.5), 0px 1px 0px rgba(255,255,255,.4);

	background: -webkit-linear-gradient(top, #222 0%, #45484d 100%);
	background: -moz-linear-gradient(top, #222 0%, #45484d 100%);
	background: -o-linear-gradient(top, #222 0%, #45484d 100%);
	background: -ms-linear-gradient(top, #222 0%, #45484d 100%);
	background: linear-gradient(top, #222 0%, #45484d 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#222', endColorstr='#45484d',GradientType=0 );
}

.squaredThree label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
	filter: alpha(opacity=0);
	opacity: 0;
	content: '';
	position: absolute;
	width: 9px;
	height: 5px;
	background: transparent;
	top: 4px;
	left: 4px;
	border: 3px solid #fcfff4;
	border-top: none;
	border-right: none;

	-webkit-transform: rotate(-45deg);
	-moz-transform: rotate(-45deg);
	-o-transform: rotate(-45deg);
	-ms-transform: rotate(-45deg);
	transform: rotate(-45deg);
}

.squaredThree label:hover::after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
	filter: alpha(opacity=30);
	opacity: 0.3;
}

.squaredThree input[type=checkbox]:checked + label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
	filter: alpha(opacity=100);
	opacity: 1;
}

/* SQUARED FOUR */
.squaredFour {
	width: 20px;	
	margin: 20px auto;
	position: relative;
}

.squaredFour label {
	cursor: pointer;
	position: absolute;
	width: 20px;
	height: 20px;
	top: 0;
	border-radius: 4px;

	-webkit-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	-moz-box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	box-shadow: inset 0px 1px 1px white, 0px 1px 3px rgba(0,0,0,0.5);
	background: #fcfff4;

	background: -webkit-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -moz-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -o-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: -ms-linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	background: linear-gradient(top, #fcfff4 0%, #dfe5d7 40%, #b3bead 100%);
	filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfff4', endColorstr='#b3bead',GradientType=0 );
}

.squaredFour label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
	filter: alpha(opacity=0);
	opacity: 0;
	content: '';
	position: absolute;
	width: 9px;
	height: 5px;
	background: transparent;
	top: 4px;
	left: 4px;
	border: 3px solid #333;
	border-top: none;
	border-right: none;

	-webkit-transform: rotate(-45deg);
	-moz-transform: rotate(-45deg);
	-o-transform: rotate(-45deg);
	-ms-transform: rotate(-45deg);
	transform: rotate(-45deg);
}

.squaredFour label:hover::after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
	filter: alpha(opacity=30);
	opacity: 0.5;
}

.squaredFour input[type=checkbox]:checked + label:after {
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
	filter: alpha(opacity=100);
	opacity: 1;
}

              
            
!

JS

              
                
              
            
!
999px
If you want to flex your skills and go off the grid, try coding a layout with float.

Console