There are many different Content Blocks available in Impact Stack. Find out how to use each of them.
Add text blocks to the page. There are formatting options at the top
You can also unpin the formatting bar to have a floating formatting bar instead.
Then if you select text, the formatting bar floats above it.
When you want to add an image to an Impact Stack page, you'll see a pop-up a bit like this showing previous images that have been uploaded to your Impact Stack.
You can search to find images or select one directly.
If you need to add a new image, click the Upload tab.
"Alt text" is where you describe the image and the context of the image so that somebody using a screen reader could understand what the image is about.
Alt text should concisely describe what the image conveys and why it matters to the content, focusing on key details that would be missed if the image weren't visible while keeping descriptions under 125 characters whenever possible.
You can mark an image as decorative when the image is a purely aesthetic elements that doesn't contribute meaningful information to the content. People using screen readers would not hear about images marked as decorative.