*
{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    cursor: default;
    font-family: Arial, Helvetica, sans-serif;
}

body
{
    background-color: #f9f9f9;
}

#content
{
    display: flex;
    flex-direction: column;
    margin: 20px auto;
    width: clamp(400px, 90vw, 1000px);
    gap: 20px;
}

#content > div
{
    border: 1px solid #000;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 3px 3px 15px #1b1f26;
}

#content > h1
{
    text-align: center;
}