Combobox for tablets

Hello everyone,

I know Ext 5 is much more tablet-friendly but... what can I do... we're working with Ext 4 now.

I managed to enlarge my combo box to suit better tablets:

{

xtype : 'combobox',

width : 200,

height : 40,

fieldStyle : "font-size: 30px !important;"

}

I know using "!important" is hysterical but... it works.

combo.PNG

I also managed to change the image that is used to show an arrow going down. the one that opens the list of the combo box. But unfortunately, the "field" given to the the image is very small.

combo2.PNG

So I need help:

1. Does anybody know how to make the room for image larger? (maybe using CSS)

or:

2. Does anybody know how to make a whole new combo box component which is larger than usual.

Combobox for tablets