Botton align in form

[issameddine]

Hello
I have a text field and a button in a form, I put in two columns and I want them to be lined up.

{
                    items           : Designation,
                    layout          : 'form',
                    border          : false,
                    columnWidth     : .5
			    },
			    {
                    items           : deleteBt,
                    layout          : 'form',
                    border          : false,
                    columnWidth     : .1
			    }