totally collapsed

Gentlemen, I need your help,

I cannot explain to myself: 

why here 

 p { border: blue solid 1px; }
<body>
<p>paragraph</p>
</body>

margins of the paragraph are collapsed ,

and here

 p { border: blue solid 1px; margin:1em }
<body>
<p>paragraph</p>
</body>

margins of the paragraph are not collapsed.

Any sacred knowledge to share?

I am trying to use rules from: 
http://www.w3.org/TR/CSS21/box.html#collapsed-through

I am testing this in Internet Explorer and Gecko. 

Thanks in advance,

Andrew Fedoniouk.
http://terrainformatica.com

Received on Friday, 2 July 2004 01:38:53 UTC