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Clickable image that shows a text in the same url

I have a question. I have just started to design a web page and get used to the webflow. But there are some features I do not know but I am sure there is a possible solution. What I want to do is to create a clickable image that displays a text (not in a different url) on the foreground. Just like a gallery but it opens a text when you click the image. The text is might be long. Is there any way to do this?
Thank you for your help