blogger

please help me, how to change the size from (930*62) into (970*62) of the nav menu?

am almost new to css and html, i usually search google for the code i needed and do some modification to work for me.

currently i want to implement a button in my blogger blog and here is how it works in example Original button example see original working button here
here is my test blog where i have implemented it but not working fine.

Visit my blog here

whose css code is as follow.