Refer to the following points to design QWeb templates effectively:

• Odoo, as a whole, makes extensive use of Bootstrap (http://getbootstrap.com), which you should use to get adaptive designs without much effort.
• For details on view inheritance, take a look at the Changing the existing views – View inheritance recipe in Chapter 10, Backend Views.
• For a more in-depth discussion of controllers, refer to the Make a path accessible from the network and Restrict access to web accessible paths recipes in Chapter 14, Web Server Development.