Time for a little experiment! Let's try a different template on for size. Joomla! comes with a few different templates. They're pre-installed; you only have to set them to be the new default template. In this example, we'll choose the JA Purity template:
1. Navigate to Extensions | Template Manager.
2. Select the radio button next to JA Purity. Click on the Default button in the toolbar to set JA Purity to be the default template. Click on Preview to see the results:
Same content, different design; by setting JA Purity to be the new default template you've given the site a completely new look. The ability to change templates in a few clicks is one of the things that really makes Joomla! stand out. Without needing any coding skills you can completely transform the site's appearance.