From the Acknowledgements:
> The HTML layout at htdp.org is the work of Matthew Butterick, who created these styles for our on-line documentation.
Some of his other work:
> The HTML layout at htdp.org is the work of Matthew Butterick, who created these styles for our on-line documentation.
Some of his other work:
Particularly helpful is the practical advice: how to get the desired results in Word, Pages, or with HTML/CSS; not just high-level abstract guidelines. There's everything from keyboard shortcuts for inserting different dashes (to accompany the explanation on when to use each type) [1] to guidance on page margins in print and on the web [2].
0: https://practicaltypography.com/