As noted in the comment below by cgaudreau, this will not work on iOS devices.
In the web design world, you might come across a site that has photos/images where if you click on the image, a larger version of that appears front and center, and the rest of the website is grayed out behind it temporarily...until you close the image to return to the webpage. This is commonly known as a "lightbox". The following are some related discussion threads I've found around the topic here in the Community:
<div id="dialog_for_link1" class="enhanceable_content dialog">Bacon ipsum dolor amet pancetta cow...</div> <p><a id="link1" class="Button Button" style="width: 20%;" title="This is the button description when you roll your mouse over it." href="#dialog_for_link1">Click to Learn More</a></p>
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I've worked at MPTC since January 2001 as Web Specialist in the Instructional Technology department. Basically, I work with our Curriculum department to put courses into Canvas for our faculty. I enjoy playing disc golf, watching movies, playing video games, playing board/card games (Carcassonne, Settlers of Catan, Monopoly, Ticket to Ride, 7 Wonders, Forbidden Island, Forbidden Desert, Betrayal at House on the Hill, Splendor, Above and Below, Munchkin, and Exploding Kittens), reading, and being with family and friends. I help volunteer with our Sr. High Youth program at my church and also help with the soundboard and running slides for our Sunday services. I am currently on my fourth Toyota Prius. The first (a silver 2004 2nd Gen) was victim to a flood that came through our area, and water got inside which ruined many of the electronics in it. My second (a magnetic gray metallic 2009 2nd Gen) was totaled in a rear-end collision. I totaled my 3rd Prius (a silver 2011) when I rear-ended someone by accident in town. I now have a 2019 Toyota Prius Limited...and it's awesome!