@media only screen and (max-width: 420px) {
    .user-bg {
        flex-direction: column;
        height: unset;
    }
    .loginForm {
        width: 85%;
        margin-left: unset;
    }
    .registerForm {
        width: 85%;
        margin-left: unset;
    }
    .log-title {
        font-size: 0.9rem;
    }
}