Standalone webapp and Browser scrollbars
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I have a standalone webapp written in GAS that has a scrollPanel, the whole UI is rather small and occupies only a part of a (even small) display area in the browser window.

What bothers me is that I always have both an horizontal and a vertical scrollbar in the browser window and it interferes with the UI content when I use a mouse or a trackpad to scroll my scrollpanel in the UI window...
So, my question is : is there a way to avoid this, to tell the browser that there is no need to add scrollbars or to define a smaller "webapp area" ?

note that the size of these scroll bars are fully independent from the UI panel size as long as this last one is smaller than the browser window.

Here is a screen capture to illustrate what I'm saying (I do understand that it's a detail but it makes the use of this app sometimes just uncomfortable ;-)   Here is also a link to a [public version of the app][1].
![enter image description here][2]  

Another detail I'd like to solve is the font color in the upper part of this UI : these are textBoxes that I set to 'read only' because I don't want them to be editable (it would give the illusion that the user could modify data which is not the case) and a side effect of this read only status is that fonts are "greyed" ... is there some way to avoid that while keeping the same aspect (except color) on this 'false table' ?


  [1]: https://script.google.com/macros/s/AKfycby1CQyMYZslTV4lRfjjLNWXiDIr2REiyV8PS3xfQ7ORFW5ONpti/exec
  [2]: http://i.stack.imgur.com/AhaH3.png