I have created a wordpress theme on my small local machine using apache, after i upload it to the web hosting server design looks bigger nevertheless the layout still looks fine.It's type of like it's broadened everything 5%.

I am viewing the website in opera only on my small local enviroment as well as on the live site.

After I switch between your two conditions still it seems bigger around the live site.

If I am using Win7 and also the internet host is applying linux will affecting design?

My conatainer div's are occur px and I have also set the default font-size to 14px.

Perhaps you have attempted utilizing a different browser to check in?

Perhaps you have attempted pressing Control+Zero to totally reset the zoom level?