Hi @bfanti I’m not 100% sure if this is what’s happening in your case, but I think it’s not changing in size because when you originally added that reusable element (“Sign Up/Login Popup A”) to your home page, it will remain the width and height it was when you added it to the page (unless you manually adjust it). Since you were adjusting dimensions of the reusuable element itself in edit mode, I think the only step you have to do next is to enter those dimensions in the property editor of the “Signup/Login Popup A” element on your home page.
For example: I added the same reusable element to my home page: “Signup/Login Popup A”:
Then I adjusted the popup dimensions here while editing the reusable element “Signup/Login Popup”:
Then I went back to my home page and the dimensions remain in their original sizes until I manually change “Signup/Login Popup A”'s height and width to “Signup/Login Popup”'s height and width.
Also check to see if you have fixed width unchecked on “Signup/Login Popup A” and it should resize in the way you’d like I think!