@keyframes srb{0%,100%{transform:translateX(-50%) scale(1)}50%{transform:translateX(-50%) scale(.95)}}.sticky-button{display:none;position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background-color:red;color:#fff;padding:15px 30px;border:none;border-radius:25px;font-size:18px;font-weight:700;text-transform:uppercase;cursor:pointer;box-shadow:0 4px 6px rgba(0,0,0,.1);animation:srb 1s linear infinite}.sticky-button:hover{background-color:#8b0000}@media (max-width:767px){.sticky-button{display:block}}