Different look in Opera and IE<9

[snecz]

Hello,
My site looks the same (for me that's correct look) in FF, Safari and IE 9. link
But I have some problem with Opera (divs in the middle of the page aren't centered) and IE<9 (just take a look).
I'd be very grateful if you could point me where can be the problem with the code...
Thanks,s

[ralph.m]

It looks fine in Oper to me. But I dread to look at an HTML5 site in IE8 and under. I see you are using Modernizr, but all the same, using these new elements doesn't seem worth the trouble to me. It's really important to test a page in browsers as you build it, as debugging once the page is finished is much harder.

[snecz]

In Opera the boxes in the middle and at the bottom (dogs pictures and everything under it) are not centered properly. I don't know why.
Do you think it's to early to use html5 elements concerning IE?

[ralph.m]

Do you think it's to early to use html5 elements concerning IE?

I'm not sure how well IE9 supports the new elements, but IE8 doesn't, and it will be a good while before that gets killed off. So the new elements only really survive on a CSS/JS life support system, which I find untenable—though many people don't, to my surprise.

As elements gradually become supported, I'm sure I'll use them. But IMHO there's no point whatsoever to be using new elements like <nav> and <section> right now, as they offer no structural or semantic advantage (because browsers don't understand the semantics yet), while at the same time the bring with them a bunch of headaches.

[snecz]

Maybe you're right about the html5 elements...Although I made html5 sites that looks great in IE...
And what about Opera? Do these boxes look good for you? I think there're not centered properly.