Workshop

The Workshop has quiz questions and exercises to help you put to use what you just learned. If you get stuck, the answers to the quiz questions are in the next section. But try to answer the questions first. Otherwise, you’ll be cheating yourself.

Quiz

1. Why is it important to always provide alternative text when inserting an image into a web page?

2. What are the differences among GIF files, JPEG files, and PNG files? When would you use each format?

Answers

1. The alternative text displays whenever the image is not loaded because the connection is too slow, the image is not available, or the visitor is using a text-only or text-to-speech browser. The alternative text is both a courtesy to these users and a necessary substitute if your images do not load.