body {
  font-family: Arial, sans-serif;
  margin:0;
  padding:0;
  -moz-user-select: -moz-none;
  -khtml-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.centered {
  position: absolute;
  margin: auto;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

.ad-container {
  background-color:#FFF;
  box-sizing:border-box;
  overflow:hidden;
  /*border: 1px solid black;*/
}

.buttonLayer {
	position: absolute;
	color: #999;
	border: none;
	outline: none;
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
	user-select: none;
	width: 100%;
	height: 100%;
}