content is shown before tabs are loaded

[guest]

On slow connections (or big tab-contents) there is the phenomenon that before the tabs are loaded, a part of the content is already shown (without tabs). The result is: the user gets the whole content (even the one, who is hiding in other tabs - after they're loaded) and finaly sees the "transformation" into the tabs.

[bill]

You need to set style="display: none" on the hidden tabs (or on all the tabs maybe), or just hide everything on the page until parsing is finished, like themeTester.html does. This is by design.