BEST USE: short tooltips in an article.
WHAT TO WATCH FOR:
Because the code does not detect the browser borders, tooltips that are close to the left, top or right of the browser may get cut off. For short tool tips you can adjust the width to make it fit - but for longer tips that is not always feasible.
Because the screen edge is not detected, MANY tooltips are cutoff on mobile displays.
Not recommended for responsive sites that will be displayed on mobile & tablet