.parallax-container {
	-webkit-align-items: center;
	align-items: center;
	display: -webkit-flex;
	display: -ms-flexbox;
	display: flex;
	-ms-flex-align: center;
	-webkit-flex-wrap: wrap;
	-ms-flex-wrap: wrap;
	flex-wrap: wrap;
	margin: 0;
	padding: 15px;
	position: relative;
	width: 100%;
}

.parallax__container {
	clip: rect(0, auto, auto, 0);
	height: 100%;
	left: 0;
	overflow: hidden;
	position: absolute;
	top: 0;
	width: 100%;
	z-index: -100;
}
.parallax__container .parallax {
	/* can be put in a seperate class for better control */
	background-position: center;
	background-repeat: no-repeat;
	background-size: 50% 50%;

	background-size: cover;
	/* --------------------------- */
	position: fixed;
	top: 0;
	-webkit-transform: translate3d(0, 0, 0);
	transform: translate3d(0, 0, 0);
	-webkit-transform-style: preserve-3d;
	transform-style: preserve-3d;
	width: 100%;
}

@media screen and (max-width: 700px) {
	.parallax__container .parallax {
		background-size: 170% 80%;
	}
  }