*{
margin: 0;
padding: 0;
border: 0;
}
.btn-bla{
    position: fixed;
    width: 150px;
    height: 65px;
    line-height: 65px;
    bottom: 45px;
    left: 150px;
    background: transparent;
    color: #FFF;
    border-radius: 850px;
    font-size: 200px;
    z-index: 100;
}
.btn-bla:hover{
    text-decoration: none;
    color: transparent;
    background: transparent;
}