Sorry Jan, I do not know how font size is controlled across the web. The fonts can be scaled on the individual computers, and for me to be able to work on this lap top machine, I have mine scaled at 1.25 on this machine, and 1.5 on the desk top. I switched to FireFox browser, and the editing screen produces such large font I was reducing it to where it looks ok on the web page as viewed through my browser. I just do not know how to set it so it will work on all computers.
I note that there are many sites I need to adjust, both up and down. This can be done with the control key, and - or + keys. On my browser there is also - and + that scale the font size, and these seem to be independent of the computer. I have just reset this computer to default, but I will not be able to work for long like this.
Please let me know if this works for you all.