body { background:#eee; margin:1em; text-align:center; }
canvas { display:block; margin:1em auto; background:#fff; border:1px solid #ccc }

.controls 
{
	display: inline-block;
	padding-right: 50px;
	padding-left:  50px;
}

.slide {
  display: inline-block;
  width: 80px;
  height: 26px;
  background: #fff;
  margin: 5px auto;
  position: relative;
  border-radius: 50px;
  box-shadow: inset 1px 2px 2px 1px rgba(0, 0, 0, 0.5), 0px 1px 0px rgba(0, 0, 0, 0.2);
}
.slide:after {
  content: 'OFF';
  color: #000;
  position: absolute;
  right: 10px;
  z-index: 0;
  font: 12px/26px Arial, sans-serif;
  font-weight: bold;
  text-shadow: 1px 1px 0px rgba(255, 255, 255, 0.15);
}
.slide:before {
  content: 'ON';
  color: #000;
  position: absolute;
  left: 10px;
  z-index: 0;
  font: 12px/26px Arial, sans-serif;
  font-weight: bold;
}
.slide label {
  display: block;
  width: 34px;
  height: 20px;
  cursor: pointer;
  position: absolute;
  top: 3px;
  left: 3px;
  z-index: 1;
  background: #333;
  background: -webkit-linear-gradient(top, #555 0%, #444 40%, #333 100%);
  background: linear-gradient(to bottom, #555 0%, #444 40%, #333 100%);
  border-radius: 50px;
  -webkit-transition: all 0.4s ease;
  transition: all 0.4s ease;
  box-shadow: 0px 2px 5px 0px rgba(0, 0, 0, 0.3);
}
.slide input[type=checkbox] {
  visibility: hidden;
}
.slide input[type=checkbox]:checked + label {
  left: 43px;
}

.slideLabel {
  padding-left: 18px;
  padding-right: 1px;
  font: 15px arial, sans-serif;
}

#loading {
   width: 100%;
   height: 100%;
   top: 0;
   left: 0;
   position: fixed;
   display: block;
   opacity: 0.7;
   background-color: #fff;
   z-index: 99;
   text-align: center;
}

#loading-image {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 100;
}