.preloader {
	display: none;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	/*height: calc(100% - 20px);*/
	z-index: 99999;
	background: rgba(0, 0, 0, .5) url(../img/puff.svg) center center no-repeat;
}