.jarallax {position: relative;z-index: 0;}
.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;}