This page uses CSS3 transforms and transitions.
The options below demonstrate ways that you might want to change the behavior of the drawer toggle by adding classes to the body element of the page, which are targeted by the custom CSS.
The particular classes being applied to the body element are just being used as an example, as is the ability to turn them on and off with JavaScript. You may write your drawer page using any classes or attributes you choose, and target them with any CSS that suits your needs.