Make online reading easier, more “universal”

Reading on the internet is hard.  I’m not that great at it.  The distance between my eyes and the screen is several inches greater than the distance between my eyes and a printed page.

As a workaround, a way to make it easier to read online, I tend to highlight the section I’m currently reading with a mouse click-and-drag.  This helps me keep my place and pull forward the relevant section.

Here’s what it looks like on a dark background…:

There must be a way we could make this a little smoother, more effective — universal.  Perhaps it could locally magnify the text?

(Haven’t scoured the web for this reading aid yet).