[thelist] Not declaring image dimensions

[Liam Delahunty]

on 17/05/2004 16:27 Clive R Sweeney wrote:

> It's become second nature now to *always* include the height and width
> for images, but what is the downside of not including dimension
> attributes in an image tag? Is it that the page will load more slowly
> and that the page display will change as the images load? Or is there
> more to it than that?
>  
> ::. clive
>  
> Clive R Sweeney
> Durham, North Carolina
> 

There's an interesting bug in Internet Explorer 5.5 [1] if you don't 
declare image sizes on rollover border effects.

http://www.liamdelahunty.com/tips/css_img_hover.php

Some of the images don't have the width height set, so when you rollover 
the image in that browser the whole image disappears!

[1] haven't tried IE6 or IE4. Rollover works fine in Firebird and Opera.

As others will point out, pages without image sizes coded have a 
re-rendering effect as the images load into the empty image 
placeholders, thus moving the text 'round.

-- 
Kind regards, Liam Delahunty, Mega Products Ltd
12 Bury Place, London WC1A 2JL Fax: +44(0)871 224 7891
http://www.megaproducts.co.uk/ Internet Design & Development