Tooltips allow you to display text over some gallery elements during mouseover. It looks like this:
Here the tooltip is used to display helpful information on how to use the Download Image icon. Tooltips are an excellent way to communicate useful information to your visitors without bludgeoning them with bullet-point instructions. Tooltips are enabled for most utility icons throughout the image gallery.
Tooltip colors are customizable, and content may be localized for each icon.
You may specify in which direction the tooltip should appear by default relative to the object; in cases where there is not enough space, the tooltip will relocate automatically.
Because touch screens do not have hover events, tooltips will be disabled automatically when the gallery is being viewed on iPhones, iPads or Android devices so as not to interfere with touch input. Smart!