body         { font-family: Arial; 
               font-size: x-small; color: #000000 }
A
{
    TEXT-DECORATION: none
}

a:link       { color: #000000  }
a:visited    { color: #000000  }
a:hover      { color: #A9A9A9  }


.btn-whatsapp {
        display:block;
        width:70px;
        height:70px;
        color#fff;
        position: fixed;
        right:20px;
        bottom:20px;
        border-radius:50%;
        line-height:80px;
        text-align:center;
        z-index:999;
}