.about-bg{background-image:url(/about/banner.webp);background-position:100% 25%;background-repeat:no-repeat;background-size:cover;background-attachment:fixed;height:100vh}.about-bg:before{content:"";z-index:1;opacity:.6;background-color:#000;width:100%;height:100vh;position:absolute}@media screen and (max-width:991px){.about-bg{background-position:50%}}