Often as I am visiting a page, the text undergoes multiple font transformations, which trigger reformatting of the page, with the associated jumping around.  I see this often on NYTimes pages.  There are at least two changes, perhaps one change in the size, the other in the type (there may be more).  I am not sure if it's something we can control somewhat, or if it's due only to changes in the NYTimes HTML, but it didn't use to be this bad.  I notice this both on my phone and the browser in my Chromebook.