you don't show the markup or css, but most likely the stacking context of the desired display items is lower than that of the actual displaying items.
how show content of only top elements in webview2 control in C# WPF application
Ajay Gera
40
Reputation points
On expanding combo box control in webview2 control, items of combo control get overlapped with control underneath i.e. combo Box items are not completely visible it (as shown in attached pic)
I have tried to use opacity property but no luck. This should have handled by default