.ggt-expanding{
	position: fixed;
	top: 0;
	z-index: -1;
	width: 100%;
	height: 100%;
}


.ggt-expanding.ggt-transition {
  background: linear-gradient(45deg, 
  	rgb(246,46,36), 
  	rgb(255,133,27), 
  	rgb(255,221,0), 
  	rgb(46,204,64), 
  	rgb(0,116,217), 
  	rgb(176,13,201));
  background-size: 200%;
  animation: transition 20s infinite;
}

@keyframes transition { 
  0% {
    background-position: 0;
  }
  50% {
    background-position: 100%;
  }
  100% {
    background-position: 0;
  }
}