#myBtn {
	width: 80px;
    height: 80px;
    display: none;
    position: fixed;
    bottom: 20px;
    right: 30px;
    z-index: 99;
    font-size: 60px;
    border: none;
    outline: none;
    background-color: transparent;
    color: #0DB3E5;
    cursor: pointer;
    padding: 6px;
    border: 1px solid #0DB3E5;
    border-radius: 50%;
    text-align: center;
}

#myBtn:hover {
  -webkit-transition: background .3s ease-in-out;
  -moz-transition: background .3s ease-in-out;
  transition: background .3s ease-in-out;
}