When customizing your own Joomla 3 site for tablets and mobile devices, you may come to the conclusion that you do not want to show the whole content but hide/show some site contents on selected screens. In such a situation, help comes from the utility classes included to the Bootstrap library.
You will be able to show or hide content by device by using the following classes:
If you would like to hide/show a Joomla module for certain devices, simply add an utility class as module class suffix:
In some cases, when a Joomla module does not support suffixes or you would like to show/hide a template block, you can simply add an utility class as html class attribute:
Find more details on responsive features included to Bootstrap here.