css float not behaving in IE7 [closed]

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Hi I know IE7 css float issues have been asked here a few times but I still can't resolve my issue.

Please have a look at this page. I'm using开发者_JAVA百科 IE9 in IE7 mode and have changed the widths of the divs and the items inside them, checked the clear:lefts and the heights but the main div won't float to the left of the nav.

Can anyone spot the cause?

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Taking out the #main { clear: left; } and removing the .narrow#main { margin-top: -40px; } did it for me.

At least, it seems to work in IE9's IE7 mode.