overflow:hidden does not work

Here's my code: http://jsfiddle.net/ybCN5/

I do not know why it does not work. I've tried different ways and still cannot find a solution. I'm going to use th开发者_如何转开发is box for jquery sliding.

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Your position:absolute; is causing the element(.sldtitulo) to escape its parent. You need to give the parent that you want it to not overflow a position with a value that is not static.