Detects if an element (tooltip) falls of the right/left/top/bottom side of your screen/viewport

Adds a class to all your elements with the defined selector that fall of the right/left/top/bottom side of the screen.

• checks all the elements with the defined selector.
• rechecks everything when resize (optimized resize)
• customize classes

$( document ).ready(function() {
  $('.tooltip__content').offscreen({
    rightClass: 'right-edge',
    leftClass: 'left-edge',
    topClass: 'top-edge',
    bottomClass: 'bottom-edge',
    smartResize: true
  });
});   

jQuery

@GijsRoge