Use a link button in sticky bar to open a popup form


#1

Hello,
I try to set a sticky bar with a button "Jโ€™en profites > " (in French :wink: ) on my website www.ubinect.fr
And I Need to open a popup overlay when I click on this button, to present the form :

How to get a link open this popup in Lightbox?

Thanks for Help
(and sorry for my basic English :wink: )