Theme responsiveness

We end this chapter with a short note on building a responsive, mobile-ready theme. Luckily, this is an easy task in Moodle: simply start with a basic responsive theme such as clean as we did just now--or one from the community such as Essential (https://moodle.org/plugins/theme_essential) - and adapt accordingly. It is always easier to find a theme you like and adapt that. In order to be mobile ready, Moodle uses Bootstrap (originally version 2 but latterly version 4; see https://docs.moodle.org/dev/Bootstrap_2 for details). As there are plenty of good examples in the Moodle developer documentation of how to develop responsive themes, the reader is directed to https://docs.moodle.org/dev/Themes_overview for help on getting started.