#background{width:100vw;background-image:url('../assets/images/whitebird-russia.avif');background-size:100% auto;background-repeat:no-repeat;background-position:top center;cursor:pointer;z-index:+1}@media (max-width:768px) and (orientation:portrait){#background{background-image:url('../assets/images/360x740.avif');width:calc(100vw + 40px);height:calc((100vw + 40px) * 2.11);margin-left:-20px;margin-right:-20px}}