html {
    font-family: monospace;
    font-size: 14px;
    letter-spacing: 0;
    line-height: 1.7em;
}

h1, h2, h3 {
    line-height: 1;
    margin:  1em 0;
}

h1 {
    font-size: 32px;
}

h2 {
    font-size: 28px;
}

h3 {
    font-size: 22px;
}

h4 {
    font-size: 18px;
}

p {
    margin-left: 2em;
}

ul {
    margin-left: 2em;
}

pre {
    margin-left: 4em;
}

.about {
    border: 1px solid black;
    padding: 5em;
    margin: 5em;
}