HOW TO CREATE A PICTURE POPING UP WHEN I CLICK ON A TEXT?

[gaellombardo]

Hello,
I would like to know if somebody's know how can I create a poping up picture when I Click on a line in a text bloc.
Actually, I want a picture showing the sizing when I click on "size guide" line in my product description bloc.
Like you can see on the website : https://foruseditions.com/chemisepierrotbleucanard/

I can't to it with some pop up plugins. I just need something simple, a picture poping up when I click on the text as a link maybe.

Thank you so much in advance,

Gaël