Placing Shortcode within a tag

I am trying to position a contact form absolutely within a text widget however when I wrap the shortcode in a div tag it is effecting the look of the form? This is what I have done (I have little code knowledge)

<div style="position: absolute; top: 75px;">
[gravityform id=1 title=false description=false ajax=true]
</div>

This is the page that it is on, as you can see it is shrinking the input boxes and removing the space between them: http://www.socialbizzle.com/?page_id=1899

Anyone know why this is happening?

Thanks

Ali