User blog comment:Rappy 4187/Technical Update: July 27, 2016/@comment-25090105-20160730055253/@comment-1757994-20160731051715

I found a comprehensive answer at http://stackoverflow.com/questions/7785374/how-to-prevent-column-break-within-an-element. Dig down through the responses to find it. Putting the following in Wikia.css should do the trick. In general, apply the list of styles to any element you don't want to break across columns. This case is just the one div. The laundry list of styles is necessary for cross-browser utility. Each browser prevents breaks differently.  overflow: hidden; /* Fix for Firefox and IE 10-11 */ -webkit-column-break-inside: avoid; /* Chrome, Safari, Opera */ page-break-inside: avoid; /* Deprecated Firefox */ -moz-column-break-inside: avoid; /* Current Firefox */ column-break-inside: avoid; break-inside: avoid; /* IE 10+ */ break-inside: avoid-column; } Alternatively, still get Wikia to fix their css.
 * 1) HiddenPowerCalculator {