.parallax-container{background-image:linear-gradient(to left,#000c,#000c),url(https://cdn.pixabay.com/photo/2014/11/03/11/07/lion-515028_960_720.jpg);background-size:cover;background-position:center;display:flex;align-items:center;background-attachment:fixed;position:relative}@media (width <= 768px){.parallax-container{height:15rem}}@media (width > 768px) and (width < 1024px){.parallax-container{height:18rem}}@media (width >= 1024px){.parallax-container{height:20rem}}