I'm currently making a website with a complicated design. I use to play with Firebug to controle layers placement, to trace unwanted margins and so many strange html behaviors. But ... Internet Explorer is a crappy piece of program ! If Firefox make some strange things, Internet Explorer is doing really what it wants.
So I tried to find out an equivalent of Firebug for Internet Explorer. I know that Firebug exists as a javascript script, but I didn't want to change my code just for that.
I tried CSSVista, a free application, but I didn't really understood how it works.
I finally found Internet Explorer Developer Toolbar made by ... Microsoft itself. Well, it's not firebug, but it does it's job.
Note that the html code is rewritten. For example :
<div class="foo"><p style="border: 1px solid black">bar</p></div>
will be show in the toolbar as :
<DIV class=foo>
[-] <P>
[-] #text
It looks like that old HTML 3.2 or whatever, without quote, in uppercase :(