body {
    display: flex;
    justify-content: center;
    align-items: center;
}

#login_form {
    overflow: hidden;
    width: 24%;
    height: 60dvh;

    h1 {
        background: var(--btncolor);
        padding: 1dvh 0 1dvh 2dvh;
    }

    ul {
        position: relative;
        background-color: var(--subbgcolor);
        width: 100%;
        height: 100%;
        padding-top: 8dvw;
        display: flex;
        align-items: center;
        flex-direction: column;
        li {
            display: flex;
            justify-content: center;
            width: 90%;
            margin-top: 1vw;
        }
    }
}

@media only screen and (max-width: 1080px) {
    #login_form {
        width: 80%;
        ul {
            padding-top: 0;
            justify-content: center;
            li {
                margin-top: 3vw;
            }
        }
    }
}