body, html {
    height: 100%;
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #31312c;
}

.container {
    position: relative;
    width: 80%;
    max-width: 50rem;
    margin: 3.1rem auto;
    padding: 1.6rem;
    background-color: #a19f90;
    box-sizing: border-box;
    border-radius: 0.6rem;
}

@media (max-width: 768px) {
    .container {
        width: 95%;
        margin: 1.2rem auto;
        padding: 0.6rem;
    }
}