Hide the quick launch bar in SharePoint 2010

Today one of our clients asked a query if we can hide the quick launch bar from the site or sub-site. Informed him that he can hide the quick launch options (like Documents/Lists etc.) in SharePoint 2010 for site/subsite by going to

Site Actions - Site Settings - Tree View

Uncheck the box for “Enable Quick Launch”

But he says he wants to hide it and completely and would like to shift the page to the left to utilize the space of quick launch?

Add following script to the content editor webpart in HTML editor on the page:

If you have any queries/questions regarding the above mentioned information then please let me know.

I would be more than happy to help you as well as resolves your issues, thank you.