.wa-btn{position:fixed;bottom:20px;right:20px;width:60px;height:60px;background-color:#25D366;border-radius:50%;z-index:9999}.wa-btn:before{content:"";background-image:url('https://upload.wikimedia.org/wikipedia/commons/6/6b/WhatsApp.svg');background-size:cover;width:60px;height:60px;display:block}