Mask input for other joinee in the room

[Ronak-Makhiyaviya]

Is there any way to mask an input element for the invited user? So the host can see and fill up the information (see sensitive information like account number etc) while the invited user only can see particular input as a mask element.

I have attached one image for more clarity.

[opencoca]

A news css class set along the lines of user-"name"-input-active could be added. This could supplement the :active CSS pseudo-class. An outline and/or content along the lines of user editing could then be added with css styling.