Unable to Increase Width of html drop-down which is in table

Unable to Increase Width of html drop-down which is in table

Dear All,

I had written the code to dynamically create the html drop-down on button click of the row.
But my css is not working to increase the width of dynamically created drop-down.

Can any one please help me if any Jquery attribute helps me in extending width of my new drop-down which is getting created on Submit button click in a row

fiddle

Srk