Summary
In this chapter, we have explored the topic of mobile-first and looked at what building a responsive website entails. You should have a good understanding of what media queries are in CSS3 and what you can do with them to aid your web development for multiple screen sizes. You should also know how to modify the styles of the printed version of a website, and, as part of this chapter's activity, you have refactored some existing website code into responsive website code using media queries to help create a mobile-friendly web page.
In the next chapter, we will learn about using the HTML5 media elements, including the audio, video and canvas elements.