.bg-wrap{left:50%;opacity:0;position:absolute;transform:translate(-50%,50%) scale(.5);transition:opacity 1.5s ease-in-out,transform 1.5s ease-in-out;width:80%;z-index:-10}.bg-wrap.start-animation{opacity:.5;transform:translate(-50%,50%) scale(1)}@media screen and (max-width:767px){.bg-wrap{opacity:0;position:fixed;transform:translate(-50%,70%);width:150%}.bg-wrap.start-animation{opacity:.5;transform:translate(-50%,60%) scale(1)}}