css position problem

There are two div .ONE IS HORIZONTZL AND ANOTHER IS VERTICAL.when I click on alink in horizontal deep it goes behind the another Means(twitter area )but I don’t want it .i want to show the horizontal div infront of the vertical div.
https://dl.dropboxusercontent.com/u/219189169/my web/index.html
Please give me the solution
css position problem

See original post by anindya420