White margins around header image

First, thanks for a great theme! The regions are awesome! I am using an image in the header region, and I want to eliminate the white above and below. I thought this line
/* CONFIG */
table.layout.site-header {
margin:10px 0 0px 0; /* this controls relative header position to browser frame and lower segment - negative margine-bottom moves lower segment up */
}
in style.css would be the place to do it, but no value change for margin seems to have any effect. Can you help? http://www.interior-motives-design.com Thanks!

You need to do two things here - first is to get rid of paragraph (<p>) around the custom header. This most probably appeared as result of editing the block with input format set to Filtered HTML. If so, just edit the block once again, but this time set it to Full HTML.

Other is to set image margines to zero. To do this - put
<img style="margin:0;" src="/themes/custom/artistsC01/images/header_custom.jpg" />
instead of
<img src="/themes/custom/artistsC01/images/header_custom.jpg"/>
in the block content.

As an alternative you can add following to the style.css:
#idHeader .block a img { margin:0; }

Yes, that did it, thank you! At first I couldn't get rid of the () by just changing the input type, so in the end I created a new block and copied only the required code. Thanks!

I'm back! I swear the solution worked on the site I was working on Interior Motives Design, and I decided to use artistsc01 on a couple of 5.7 sites. I know it's crazy, but the p format seemed to have reappeared and in addition, I can't get rid of it in any site by using Full HTML (set to default). I've tried retyping code in a brand new Block box, etc. But, even though the p is there, no leading white space appears in IE, only in Firefox. I'm not trusting either my memory or my browsers at this point. what do you think? Thanks

I must confess that I have not used Drupal 5.7 so far, made transition from Drupal 5.6 to Drupal 6, so I'm not sure.

However, I'm pretty sure that your problems can be solved by configuring input filter. Go to "Home › Administer › Site configuration › Input formats", select configure Full HTML input format and disable Line break converter.

That should do the trick.

Yes! Disabling line break converter works in both 5.7 and 6.1 --- I should have looked a little deeper, but I had not been down that path before. Thanks!