# How is this done?

**URL:** <https://forum.kirupa.com/t/how-is-this-done/170009>\
**Category:** Uncategorized\
**Created:** [November 22, 2005, 12:25am UTC](https://forum.kirupa.com/t/how-is-this-done/170009 "2005-11-22T00:25:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bash](https://avatars.discourse-cdn.com/v4/letter/b/439d5e/32.png) [@bash](https://forum.kirupa.com/u/bash)\
**Post date:** [November 22, 2005, 12:25am UTC](https://forum.kirupa.com/t/how-is-this-done/170009/1 "2005-11-22T00:25:10Z")

</div>

I was browsing the sun website - [www.thesun.co.uk](http://www.thesun.co.uk) where

The Fantastic Four movie advert came to life in the middle of the page.

I have seen this type of advertisement on a few websites and was wondering how i could do it?

I have heard that it is something to do with the CSS z-index command?

Please can someone explain in more detail???

Thanks.

Bash