html{overflow-y:scroll}.dev_yellow{border:1px solid #ff0}.dev_red{border:1px solid red}.dev_blue{border:1px solid blue}.dev_green{border:1px solid green}.glow-container{z-index:0}.glow,.glow-container{position:relative}.glow:after{border-radius:10px;content:"";position:absolute;left:-2px;top:-2px;background:linear-gradient(90deg,#535ae088,#02cee088,#535ae088,#02cee088,#535ae088,#02cee088,#535ae088);background-size:400%;width:calc(100% + 4px);height:calc(100% + 4px);z-index:-1;animation:steam 10s linear infinite;filter:blur(8px)}@keyframes steam{0%{background-position:0 50%}50%{background-position:100% 50%}to{background-position:0 50%}}