:root{--btn-border:1px solid hsla(0,0%,100%,.2);--btn-bg:transparent;--btn-shadow:1px 1px 25px 10px hsla(0,0%,100%,.5);--btn-text-color:#f4f4f4;--shine-degree:120deg;--shine-color:hsla(0,0%,100%,.2);--shine-effect:linear-gradient(var(--shine-degree),transparent,var(--shine-color),transparent);--shine-transition:all 1s ease-in-out}.btn{position:relative;overflow:hidden}.btn:not(:last-child){margin-bottom:3rem}.btn:before{content:"";position:absolute;top:0;width:100%;height:100%;background:var(--shine-effect)}.btn-anim:before{animation:shine 2s ease-in-out infinite}@keyframes shine{0%{left:-100%;top:-100%}33.33%,to{top:100%;left:100%}}