.jarallax {
    position: relative;
    z-index: 0;
	height:80vh
}
.jarallax > .jarallax-img {
    position: absolute;
    object-fit: cover;
    /* support for plugin https://github.com/bfred-it/object-fit-images */
    font-family: 'object-fit: cover;';
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

@media only screen and (min-width : 0) and (max-width : 767px),
only screen and (min-device-width : 0) and (max-device-width : 767px),
only screen and (min-device-width : 0) and (max-device-width : 767px) and (-webkit-min-device-pixel-ratio : 2),
only screen and (min-device-width: 0) and (max-device-height: 767px) and (-webkit-device-pixel-ratio: 3) {
	.jarallax {
    position: relative;
    z-index: 0;
	height:auto;
}
}