.background-wrapper{z-index:0;width:100%;height:100vh;overflow:hidden;position:fixed;background-color:#000}.background-wrapper>div{width:100%;height:100%;position:absolute;animation:animate 50s infinite;opacity:0;background-size:cover;background-position:center center;filter:blur(4px);-webkit-filter:blur(4px)}.background-wrapper>div:nth-child(2){animation-delay:10s}.background-wrapper>div:nth-child(3){animation-delay:20s}.background-wrapper>div:nth-child(4){animation-delay:30s}.background-wrapper>div:nth-child(5){animation-delay:40s}@keyframes animate{10%{opacity:1}20%{opacity:1}30%{opacity:0}}