Multiline input does not fit the text

how can I make a Text Input with the MULTILINE INPUT property set to True to display multiple lines of text?
This is what I get at the moment with the Multiline Input property → True (see screenshot)

The inserted text contains many lines and they are present and I can see them with a scroll of the mouse, but I would like to be able to see them all together.
This happens on WEB preview, while on iphone it works well.

I hope I have explained.