.ctv-zalo-fab{z-index:50;color:#fff;background:#0068ff;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;font-size:1.5rem;text-decoration:none;transition:all .3s;display:flex;position:fixed;bottom:1.5rem;right:1.5rem;box-shadow:0 4px 20px #0068ff4d}.ctv-zalo-fab:hover{transform:scale(1.1);box-shadow:0 6px 28px #0003}.ctv-zalo-fab:before{content:"";opacity:.3;background:#0068ff;border-radius:50%;animation:2s ease-in-out infinite ctv-pulse;position:absolute;inset:-4px}@keyframes ctv-pulse{0%,to{opacity:.3;transform:scale(1)}50%{opacity:0;transform:scale(1.15)}}