@media (max-width: 576px) {
    .login .text-center {
        margin-top: 24%;
    }
}
@media (max-width: 980px) and (min-width: 760px)  {
    .login .text-center {
        margin-top: 24%;
    }
}
@media (max-width: 1200px) and (min-width: 980px)  {
    .login .text-center {
        margin-top: 17%;
    }
}