If you go to jeffcroft.com, you can see that following this advice isn't enough to get legible results. Most of the text on his weblog is hard to read because o

If you go to jeffcroft.com, you can see that following this advice isn't enough to get legible results. Most of the text on his weblog is hard to read because of excessive use of italics, light-on-dark text, and low contrast (exasperated by my laptop screen's poor contrast). I think Jeff is a good designer and he is probably mostly right. However, many parts of this presentation will lead you down the wrong path if you are a beginner. The 62.5% trick doesn't work as well as the designers claim, because there are a lot of people where the default font size isn't 16px tall (e.g. in high DPI mode or when the browser's font size setting is not "normal"). K.I.S.S. and keep everything font-size: 100%, except fine print which can be >= 80%, and headings which can be as large as you want. Basically, any use of "px" and "pt" for text in your stylesheet is just going to cause headaches. It is true that sIFR works better than what a skeptical person would expect. But, I still have problems with it all the time, copying/pasting stuff into my notes. Don't use it if you can avoid it. Finally, Jeff completely misses the point of "vertical rhythm" as mentioned in "The Elements of Typographic Style." This is probably the #1 comprehension failure amongst readers of the book. Briefly, on the web you don't need to adhere to the vertical rhythm guidelines as strictly as you need to when you are working with text PRINTED with facing pages and/or double-sided. Unless you have multiple columns of text on your page, you shouldn't be adding extra vertical padding just to maintain a vertical rhythm, because that extra padding just leads to more scrolling, which is horrible for readability. I already commented elsewhere on the page about the problems with the leading advice. Regarding quotes...wow, this is already getting too long. I should just write an article and submit it to ALA.