How to make "read more" in a block?

Question

WordPress

Good afternoon, readers and respondents :)
Please help me deal with the problem...
How to make something like a spoiler in a short product description??
The idea is that all products should be the same height, but when clicked, the product will expand on the page without going to the full product overview.

overflow doesn't do much the way you want.
The block is limited in height and while there is an overflow - auto.

Answer 1

Because in WP, I don’t know such a function, I can suggest making a fixed height of the product card, and on hover, you can expand it into the message “growth”. Or use JS if you want to "click" :)

Answer 2

the_excerpt() is written in more detail here and text increase on click js