I hope i will find here a new great plattform to solve and help with problems.

First i have a problem may somebody can help me

Iam looking for a premade script (comercial, donation or free) for a menu like this: http://www.avent.com/au/en/

the design don't matter, the only thing i am looking for is that the drop down change the size depending the text inside and is NOT fixed like most of the other scripts. I was searching all the web but i could not find anything like this.

Thank in advance for any help!