Board Thread:New Features/@comment-24739709-20150518230347/@comment-4731443-20150909220108

I think the cleaner way would be to give them a theme (see Help:Portable infoboxes/CSS) and make its CSS float left instead of right, but if you are already using a theme and you don't want all the infoboxes that use it to float left, you can wrap individual infoboxes in a div and float that instead:

(I quickly added those margins because they seemed necessary in the preview, but you may want to look into the spacing in more detail.)