WebAIM - Web Accessibility In Mind

E-mail List Archives

Re: Increase Font Size vs. Zoom

for

From: Dawn Budge
Date: Nov 14, 2012 3:01AM


If I remember right, scroll means the scrollbars always appear, whereas
overflow: auto will make the scrollbars appear when it becomes necessary.
And as they are part of the browser UI, they are accessible to assistive
technology and keyboards. The reason you don't see them that often is more
to do with how they look. (It is possible to build your own scroller with
JavaScript by the way, just so long as you remember to make the scroll
control focussable with the keyboard and listen for keydown on the arrow
keys in addition to mouse clicks and drags.)

----------------------------------------
From: "Greg Gamble" < <EMAIL REMOVED> >
Sent: Tuesday, November 13, 2012 6:41 PM
To: "WebAIM Discussion List" < <EMAIL REMOVED> >
Subject: Re: [WebAIM] Increase Font Size vs. Zoom

Could overflow be set to scroll?

Greg Gamble
SBCTC - Olympia | Information Services
p - 360-704-4376
... think before printing

-----Original Message-----
From: <EMAIL REMOVED>
[mailto: <EMAIL REMOVED> ] On Behalf Of David
Ashleydale
Sent: Tuesday, November 13, 2012 9:33 AM
To: WebAIM Discussion List
Subject: Re: [WebAIM] Increase Font Size vs. Zoom

....
I ran this by one developer already and he said he thinks it's almost
impossible to do. He pointed to a page that has a restricted container
size
that is based on the size of the image it's next to. He said that if
someone increases the font size only, the only way for the text to be
readable is if its container also grows, but it can't grow without
wrecking
the entire page. ....
David

On Thu, Nov 8, 2012 at 3:36 PM, Jared Smith < <EMAIL REMOVED> > wrote:

> On Thu, Nov 8, 2012 at 3:50 PM, David Ashleydale wrote:
> > Thanks, Jared. Do you happen to know what percentage IE's View - Text
> Size
> > - Largest is equivalent to?
>
> Here's what I found in some quick testing...
>
> IE9 (View... Text size):
> Larger = 115%
> Largest = 132%
>
> Firefox (using CTL + or Command + to Zoom Text Only):
> 1 increase = 110%
> 2 increases = 120%
> 3 increases = 133%
> 4 increases = 150%
> 5 increases = 170%
> 6 increases = 200%
>
> Safari:
> 1 increase = 119%
> 2 increases = 144%
> 3 increases = 175%
> 4 increases = 206%
>
> Chrome (Settings... Show advanced settings... Font size):
> Large = 125%
> Very Large = 150%
>
> You'll find that even 150% can be very difficult on some sites. A
> lower value may be more reasonable in many cases.
>
> Jared
> > > >