I just developed a site and hit a stumbling block. The last photo in all of my photo galleries, will not expand (pop out and enlarge) like the other photos do.
About the hamburger, you must add another component (like a transparent box) and group both with your menu. After this, you can fix the position in “Style” (on the right interface sparkle).
Even if my interface is in Italian, I hope the image attach helping you.