在同一个应用程序中，针对一个与另一个css类同名的特定css类?

In the Master page of my webform app I reference a .css file which contains a .tooltip class. All the pages in my web app use this master page. Now, in one particular page I am using a JQuery function that I got from a sample app, and this JQuery function uses a .tooltip class from a .css that came with the sample (which is different from the .tooltip class in the Master page of my web app). How can I use the .tooltip css class that came with the JQuery sample on this one page and ignore the .tooltip class from the Master page? I cannot modify the .tooltip class name from the JQuery sample, and it would be prohibitively time consuming to rename the .tooltip class from the Master page. What is the workaround for this?In the Master page of my webform app I referenc