[RESOLVED] Asp.net webforms stacking panels

I have two panels in my webforms application. At startup, I have one panel with display: block and the other display: none...
Both have the same size and location. On clicking a button I want one to disappear and the other to appear. What actually does happen is that one disappears leaving a blank screen.

Can someone advise me on how to achieve this two panel approach?

Are you trying like this?

https://docs.microsoft.com/en-us/dot...tframework-4.8

Thread resolved. Using .Attributes to access and set the style property worked...