.border-animate:before,.border-animate:after{content:'’;position:absolute;left:-2px;top:-2px;background:linear-gradient(45deg,#fb0094,#0000ff,#00ff00,#ffff00,#ff0000,#fb0094,#0000ff,#00ff00,#ffff00,#ff0000);background-size:400%;width:calc(100% + 4px);height:calc(100% + 4px);z-index:-1;animation:steam 20s linear infinite}@keyframes steam{0%{background-position:0 0}50%{background-position:400% 0}100%{background-position:0 0}}.border-animate:after{filter:blur(50px)}