body {
    font-family: 'space mono', monospace;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    padding: 20px;
    text-align: center;
    background-color: #f5f5f5;
}

h1,
h2,
h3 {
    max-width: 100%;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 1.8rem;
    margin-top: 1rem;
}

h3 {
    font-size: 1.2rem;
    margin-top: 2rem;
}

@media (max-width: 600px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1rem;
    }
}