The first commented line is your dabblet’s title

dabblet.css

/**
 * The first commented line is your dabblet’s title
 */

.fancy-arrow {
  width: 370px;
  height: 35px;
  color: #fff;
  text-transform: uppercase;
  background: #0e0e0e;
  background: url(data:image/svg+xml;base64,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);
  background: -moz-linear-gradient(top,  #7d7e7d 0%, #0e0e0e 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#7d7e7d), color-stop(100%,#0e0e0e)); 
  background: -webkit-linear-gradient(top,  #7d7e7d 0%,#0e0e0e 100%); 
  background: -o-linear-gradient(top,  #7d7e7d 0%,#0e0e0e 100%);
  background: -ms-linear-gradient(top,  #7d7e7d 0%,#0e0e0e 100%); 
  background: linear-gradient(to bottom,  #7d7e7d 0%,#0e0e0e 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#7d7e7d', endColorstr='#0e0e0e',GradientType=0 );
  position: relative;
  cursor: pointer;
}

.fancy-arrow:hover {
  background: url(data:image/svg+xml;base64,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);
  background: -moz-linear-gradient(top,  #0e0e0e 0%,#7d7e7d 100%);
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#), color-stop(100%,#7d7e7d)); 
  background: -webkit-linear-gradient(top,  #0e0e0e 0%,#7d7e7d 100%); 
  background: -o-linear-gradient(top,  #0e0e0e 0%,#7d7e7d 100%);
  background: -ms-linear-gradient(top,  #0e0e0e 0%,#7d7e7d 100%); 
  background: linear-gradient(to bottom,  #0e0e0e 0%,#7d7e7d 100%);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#0e0e0e', endColorstr='#7d7e7d',GradientType=0 );
}

.fancy-arrow:after {
  content:"";
  display:block;
  width:25px;height:25px;
  background:#f00;
  position:absolute;
  right:-12px;
  top:5px;

  background: -webkit-linear-gradient(left top,  #7d7e7d 0%,#0e0e0e 100%); 
  -webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);
  z-index:-1;
  
}
  
.fancy-arrow:hover:after {  
 	background: -webkit-linear-gradient(left top,  #0e0e0e 0%,#7d7e7d 100%);
  	-webkit-transform:rotate(45deg);
  	-moz-transform:rotate(45deg);
}

dabblet.html

<div class="fancy-arrow gradient">What is CSS?</div>

settings.json

{"view":"split-vertical","fontsize":"70","seethrough":"","prefixfree":"1","page":"css"}