.glow-image{border-radius:12px;z-index:0}.glow-image:before{content:"";background:linear-gradient(45deg,#ff0000,#ff7300,#fffb00,#48ff00,#00ffd5,#002bff,#7a00ff,#ff00c8,#ff0000);position:absolute;top:-2px;left:-2px;background-size:400%;z-index:-1;filter:blur(5px);width:calc(100% + 4px);height:calc(100% + 4px);animation:glowing 20s linear infinite;opacity:.75;border-radius:12px;transition:opacity .3s ease}.glow-image:hover:before{opacity:1}.glow-image:after{z-index:-1;content:"";position:absolute;width:100%;height:100%;background:#111;left:0;top:0;border-radius:12px}@keyframes glowing{0%{background-position:0 0}50%{background-position:400% 0}to{background-position:0 0}}@keyframes gradient{0%{background-position:0 50%}50%{background-position:100% 50%}to{background-position:0 50%}}.background-animate{background-size:300% 300%;animation:gradient 3s ease infinite}