.fixed-contact{
    position: fixed;
    right:50px;
    top: 280px;
    z-index:6;
}
@media (max-width:767px) {
    .fixed-contact ,
    .fixed-contact img{
        width:100vw;
        margin:0 auto;
        right:0;
        bottom:0;
        top:auto;
    }
}