.fccb-chat-button{position:fixed;bottom:20px;right:20px;z-index:9999;display:block;width:60px;height:60px;background:#4285F4;border-radius:50%;box-shadow:0 4px 10px rgb(0 0 0 / .2);text-align:center;padding:10px}.fccb-chat-button img{max-width:100%;height:auto}