src/styles.scss

body {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    /* align-items: center; */
}

body>* {
    max-width: 800px;
}

input,
textarea {
    font-size: 100%;
}

.section {
    width: 100%;
    max-width: 800px;
}

.section+.section {
    margin-top: 24px;
}

.section>* {
    display: flex;
    margin-bottom: 2px;
}

code,
.code {
    font-family: monospace;
}

code.example,
.code.example {
    color: darkgreen;
}