body {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: 'Times New Roman', Times, serif;
    font-size: 20px;
    color: rgb(58, 58, 58);
}

h1 {
    font-size: 2.5em;
}

h2 {
    font-size: 1.5em;
}

h3 {
    font-size: 1.25em;
}

p {
    font-size: 1em;
}

button {
    font-size: 2em;
}