I’ve always been quite interested in typography but I’m surely far from considering myself as the greatest expert in history in this field. This is probably only one of the many reasons that recently made me feel like I needed a little refresher, and a much more solid, scientific background for my font and font-sizing decisions while coding.
One of the most interesting topics I concentrated on was about Vertical space and rhythm.
Do you know what “Vertical Rhythm” is? If not check out the great explanation they made on
Webtypography.net.
But while I was quite confident with the theory I struggled a little bit when it came up to apply what I read. What I was missing was a visual clue to keep track of the rhythm of my page.
I’ve looked for a bookmarklet that could help but wasn’t quite satisfied of none I tried, so I decided to code myself a little piece of JavaScript to test my pages in the development stage according to custom line heights.
I finally decided to convert it into a bookmarklet and called it Portamento. By publishing it on the web I hope it will be useful for other people too.
You can try/get it here.