.float {
    position: fixed;
    width: 60px;
    height: 60px;
    top: 40px;
    right: 8px;
    background-color: #ffc30b;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    box-shadow: 2px 2px 3px #999;
    z-index: 9999;
    line-height: 4rem;
    font-size: 2rem;
}
.float img{    width: 2.5rem;
    margin-bottom: 8px;}
.my-float{
    margin-top:22px;
}

body{background:#fff}