begin button styles

dabblet.css

     body, p, div, form, label, input{
    /* some reset */
        
        font-family:Verdana, Geneva, sans-serif;
        font-size:small;
        color:#666;
        background: #3a5875
        }

    
    
/* begin button styles */

.switch-wrapper{
    width:400px;
    margin:220px;
}

.switcher {
	background:#507190;
	vertical-align: bottom;
	position: relative;
	display: inline-block;
	max-width: 100%;
	vertical-align: bottom;
	box-shadow: 1px 1px 1px rgba(0,0,0,.3);
	text-align:center;

}
#left{
	background-image: url(http://www.codedevelopr.com/assets/images/switcher.png);
  	background-position: 0 13px;
}


#right{
	background-image: url(http://www.codedevelopr.com/assets/images/switcher.png);
  	background-position: -0px -17px;
}


.left{
	border-radius: 6px 0px 0px 6px;
	width: 45px; height: 38px;
	
}
.right{
	border-radius: 0 6px 6px 0;
	width: 45px; height: 38px;

margin: 0 0 0 -6px	
}
.switcher span{
 display:inline-block;
 height:18px;
 margin-top:10px;
}

.switcher:hover,
.selected {
	background: #27394b;
	box-shadow: -1px 1px 0px rgba(255,255,255,.4),
	 inset 0 4px 5px rgba(0,0,0,.6),
	  inset 0 1px 2px rgba(0,0,0,.6);
}

.switcher::after {
	content: ' ';
	width: 100%;
	height: 100%;
	position: absolute;
	top: -1px;
	left: -1px;
	border: solid 0px #1B1B1B;
	border-radius: 6px;


}

dabblet.html

<div class="switch-wrapper">
	<div class="switcher left selected">
		<span id="left">...</span>
	</div>
	<div class="switcher right">
		<span id="right">...</span>
	</div>
</div>

settings.json

{"view":"split-vertical","seethrough":"","prefixfree":"1","page":"css"}