.WA_btn{position:fixed;bottom:20px;left:20px;width:45px;height:45px;border-radius:50%;box-shadow:0 0 10px #000b39;padding:6px 8px;z-index:99;background:#00e676;display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box}.WA_btn i{color:#fff;font-size:34px}