Change ion-textarea width in ionic 4

I want to change the width of a textarea in ionic 4. I used style but the problem is the textarea is not responsive. Is there anyway I can change the width of a textarea and should still be responsive?

Do you mean for users to change the width of box by allowing user to resize the box, or just resize the textarea in code

just resize the textarea in code. I want the textarea to occupy 3/4 of the footer. I used width and it’s not responsive because I couldn’t see the send button.

nevermind. found it. I used cols="" to determine the width with the textarea becoming responsive