@media screen and (max-width: 960px) {
    .overlay-container {
        display: none
    }

    .container {
        display: block;
        background-color: #fff;
        text-align: center;
    }

    .container-div {
        background-color: #fff
    }

    .sign-in-container {
        width: 100%
    }

    .form-container form {
        width: 100%
    }

        .form-container form h1 {
            font-size: 30px;
            text-align: center;
            margin-left: 0px;
        }
    .register-container .form-container {
        margin-left: 0px;
    }
}