Adding alt descriptions to images on your Wix website is important for several reasons. Not only does it help visually impaired users understand the content on your site, but it also provides additional context to search engines which can improve your website's SEO.

Here's how to add alt descriptions to images on your Wix website:
Log in to your Wix account and navigate to the page with the image you want to add an alt description to.
Click on the image to select it.
In the top toolbar, click on the "Settings" icon (it looks like a gear) and select "Image Settings" from the dropdown menu.
In the "Image Settings" panel on the right-hand side of the screen, scroll down to the "SEO" section.
In the "Alt Text" field, enter a brief, descriptive phrase that accurately describes the content of the image.
Click "Done" to save your changes.
Repeat these steps for any other images on your Wix website that you want to add alt descriptions to. It's a quick and easy way to improve the accessibility and search engine optimization of your website.