.btn-wsp{background:#25d366;border-radius:50px;bottom:25px;box-shadow:0 1px 10px rgba(0,0,0,.3);color:#fff;font-size:35px;height:60px;line-height:63px;position:fixed;right:25px;text-align:center;transition:all .3s ease;width:60px;z-index:100}.btn-wsp:hover{background:#20ba5a}@media only screen and (min-width:320px) and (max-width:768px){.btn-wsp{height:63px;line-height:66px;width:63px}}