In this lesson from freeCodeCamp's Applied Accessibility challenges we look at cases when the alternative (alt) attribute should be left blank. We previously discussed that alternative text is important for various reasons such as describing the image if it fails to load, but also to help those who use screen readers. In this lesson we learn that, even though it is mandatory to have an alt attribute, sometimes it can be left blank. If we are using an image, purely for decorative purposes, then it is okay to leave the element's alt attribute blank. Leaving the element's alternative attribute blank when it only serves decorative purposes is important when figuring out proper site design. Another reason for not adding an alt attribute is if a description has already been given, and the current image is a part of a group of images already discussed. These are cases alt attributes are unnecessary.
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