html,body,#content_wrapper {
  height:100%;
  width:100%;
  margin:0;
}
body,#content_wrapper {
  display:flex;
  margin:0; 
  background-color: #EEEEEE;
}

.loading {
	background-image:url('media/Infinity-2.6s-200px-transp.svg');
    position: absolute;
    left: -500px;
    top: -500px;
    width: 0;
    height: 0;
	background-position: center center;
    border: none;
    background-color: rgba(255,255,255,0.9);
    background-size: contain;
    background-repeat: no-repeat;
}

.loading-cover {
	position: absolute;
    left: -500px;
    top: -500px;
    width: 0;
    height: 0;
    border: none;
    background-color: rgba(255,255,255,0.01);
}