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Accessibility and Usability Forum

    
Image Width and Height
Specifying the widths and heights on images.
pageoneresults




msg:1582951
 4:48 pm on Feb 27, 2006 (gmt 0)

Do you specify the widths and heights on your images? If so, why? If not, why?

 

DrDoc




msg:1582952
 4:49 pm on Feb 27, 2006 (gmt 0)

I always do. The main reason for this is so space will be properly reserved for the image while waiting for it to download on a slower connection.

Not specifying the dimensions will cause the content to shift around as images are being loaded, which is quite annoying. It is especially annoying for those who have already begun reading the page.

stever




msg:1582953
 4:58 pm on Feb 27, 2006 (gmt 0)

Yes, always, same reasons as above.

Matt Probert




msg:1582954
 5:53 pm on Feb 27, 2006 (gmt 0)

Yes. Because a lot of our links are to within a page (www.example.com/page1.htm#widgetA) and not specifying the image dimensions causes GUI browsers to jump to the wrong part of the page (they display the correct part, but then scroll as images come along moving the text up). A real issue for sighted readers using a standard GUI browser...

Matt

pageoneresults




msg:1582955
 5:57 pm on Feb 27, 2006 (gmt 0)

On topic...

Did you know that certain movement can cause problems with some users?

DrDoc




msg:1582956
 7:10 pm on Feb 27, 2006 (gmt 0)

Define "certain movement" and "problems" in reference to "some users"

;)

pageoneresults




msg:1582957
 7:33 pm on Feb 27, 2006 (gmt 0)

Define "certain movement" and "problems" in reference to "some users".

I'm not referring to Flicker or Strobe effects. Just movement in general on the page. Whether it be images loading in their placeholders, an animated gif, a Flash movie, basically anything that has movement. We're talking a very small percentage of users who may be affected by these.

Think cognitive disabilities.

DrDoc




msg:1582958
 9:55 pm on Feb 27, 2006 (gmt 0)

True. But while that may be the case, at least you are limiting the movement by ensuring that space is reserved for the images. If they have that problem, they will most likely surf with images turned off.

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