Position Element to a specifc continer CSS
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http://i.stack.imgur.com/Y7gkp.png

*I Have 3 Containers*
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The **Yellow box** is Standard HTML 

The **Brown box** is a container within the html

The **Red box** is an another container that appears at the very bottom of an html,
I cant change ANY html because its being processed via PHP Readfile... now in the yellow box i can add css to it
 
I want to possition the red box in side of the brown box
 
Example...


http://i.stack.imgur.com/DBbtT.png