The tooltip

Tooltip is an option to comment or illustrate a word or a part of the text.
1. Select a word or a part of text that you want to comment on.
2. Insert the link. It can start with http:// and be a link to an external resource or you can insert a hash and any word: #anyword. (see examples below)
3. Open the Block Library → Other and add the T198 block «Tooltip for link».
Elon Musk
Elon Reeve Musk (/ˈiːlɒn/; born June 28, 1971) is a South African-born Canadian American business magnate, investor, and engineer. He is the founder, CEO, and lead designer of SpaceX; co-founder, CEO, and product architect of Tesla, Inc.; and co-founder and CEO of Neuralink. In December 2016, he was ranked 21st on the Forbes list of The World's Most Powerful People. As of February 2018, he has a net worth of $20.8 billion and is listed by Forbes as the 53rd richest person in the world.
4. Open the Block Content and specify the link exactly as you added it to the word or text fragment in the Link field.
Publish the page or go to the Preview mode to see how the tooltip works.
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