Cameron Moll Go to the source
After posting my reasons for switching back to px for font-size citing page zooming as the primary justification, it was apparent that enthusiasm for page zooming wasn’t as unanimous as I had thought. As a refresher from the article, low-vision users (or anyone) can alter their browser’s text size by changing the default text size permanently via the browser’s settings, or on-the-fly using the keyboard commands Ctrl+ / - (Windows) or Command+ / - (Mac). Until recently, these commands would cause all major browsers to scale up or down the size of the text while retaining the formatting and layout of the page, commonly called text scaling or text zooming . Now, however, recent versions of every major browser now default to page zooming instead of text scaling for Ctrl+ / - and Command+ / - commands AND for the “Zoom” option in the browser’s menu. Page zooming literally zooms the entire page — layout, formatting, and text size — in unison. … Read the rest here