How to centre Div vertically

[YourDirector]

Hey everyone,

I need a way of having a div containing a vimeo embedder and a link directly in the middle of a screen, regardless of what size the screen is, so I need it to detect screen height and load half way down that if that makes sense.

Is this possible?

Thanks

[YourDirector]

No worries, found it:

<div style="position:absolute; left: 50%; top: 50%; margin: -197px 0 0 -300px; height: 394px; width: 600px; text-align:center;" />

Thanks all