Accessibility is the practice of making your websites usable by as many people as possible.
Creating accessible web sites is a collaborative effort between the developers of Caltech Sites and site editors. For example, our image blocks all include the html attribute that screen readers use - but it is up to each site's editors to provide meaningful text describing each image.
To help editors evaluate the accessibility of their pages, we have added an accessibility tool. When you preview your page, you will see a small black box in the lower left hand corner of your screen - as shown in the example to the left.
When you click on it, you will see three options:
- Link Text
- Image alt-text
- Screen Reader Wand
When clicking on either of the first two, you may or ma not see a popup in the lower right. If you do not see a grey popup in the lower right, then our accessibility tool thinks all of your links have adequate text within the link and all your images have something in the "alt text". Just because there is something in the image's alt text, does not mean that is a useful description of the image. To see the image's alt text in context, use option 3, the screen reader wand, and hover over each of your images.