.btn-style{position:relative;background:linear-gradient(90deg,#E0FFBF,#0BC14A,#0BC1AC);border-radius:100px;overflow:hidden;transition:.4s;display:flex;justify-content:center;align-items:center;cursor:pointer}.btn-style:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#E0FFBF,#0BC14A,#0BC1AC,#E0FFBF);background-size:400%;opacity:0;transition:opacity .3s;z-index:0}.btn-style:hover:before{opacity:1;animation:flow 8s linear infinite}@keyframes flow{0%{background-position:0}to{background-position:400%}}.btn-style>*{position:relative;z-index:6}