Descriptive Problem Summary:
WebClient - Entire viewport shifts up 10px when I click the background, map, or input control.
Numbered Steps to Reproduce Problem:
1. Go to http://www.byond.com/play/23.99.84.35:8802
2. Get through the splash screen
3. Click anywhere in the game such as the black background or map control at bottom right
Expected:
Nothing to happen
Actual:
The entire viewport (game) shifts up about 10px
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Notes:
Likely to be the input control which is being covered up by the WebClient toolbar. Could be by design but I don't think it should shift in this case. If something is offscreen, let the dev handle it or the user by going into full screen.
I ask because I can check out the cause of this a little later on; I can see it happening on your live URL though.