#btnCapturar {
    display: block;
    position: fixed;
    bottom: 40px;
    right: 20px;
    outline: none;
    line-height: 55px #fff;
    text-decoration: none;
    background: #12B289;
    color: #ffffff;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    text-align: center;
    box-shadow: 0px 1px 10px rgba(0,0,0,0.4);
}