Why do it:
This setting defines the maximum horizontal size that the popup can reach on the screen, expressed in pixels (px).
Procedure
1. Open the popup you want to modify.
2. In the editing panel, click on the Appearance tab.
3. Locate the field labeled Maximum Width (px).
4. Enter a numeric value in this field (for example, 700). If the field is left empty, the default width will be applied (usually 700px).
5. Complete the editing process and click the save button to apply the changes.
