On Fri, Aug 17, 2018 at 01:45 PM, Jim Higgins wrote:

as I slowly shrink the browser width it gets smaller until at about 85% screen width it gets suddenly quite a bit (disproportionately) larger,

I agree with Jim about the algorithm having a hiccup at a certain point as the width gets narrower.

On the other hand, the display rendering is pretty nifty for really narrow displays when it puts the menu in a compact version below the messages.
 
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Gerald