@keyframes wave-bg{0%{background-position:0 50%}50%{background-position:100% 50%}to{background-position:0 50%}}body,html{margin:0;padding:0;width:100vw;height:100vh;overflow:hidden;background:linear-gradient(45deg,red,#ff7f00,#ff0,#0f0,#00f,indigo,#9400d3);background-size:400% 400%;animation:wave-bg 10s ease infinite}.container{display:flex;justify-content:center;align-items:center;width:100%;height:100%}.screaming-text{font-family:Impact,Arial Black,sans-serif;font-size:8rem;font-weight:900;text-align:center;text-transform:uppercase;color:#fff;-webkit-text-stroke:4px #000;text-shadow:6px 6px 15px rgba(0,0,0,.8)}