.rbtn{
    position:fixed;
    bottom:6%;
    width:20%;
    right:2%;
    z-index:99999999;
}




.headb{
    position:fixed;
    top:0;
    width:100%;
    height:140px;
    left:0;
    background-color:#ffffff;
    margin:0 auto;
    z-index:99999999;
    text-align:left;
    text-decoration:none;
    color:#ffffff;
}


.content{
    width:100%;
    background-color:#1f62ec;
    text-align:center;
    color:#2c0a09;
    margin:0 auto;
    padding:0;
}

a.anchor {
    display: block;
    padding-top:140px;
    margin-top: -140px;
}