Different styles for tooltip and infotips in the same system?

1. When should you not use tooltip?
2. How many types of tooltip are there?
3. Should tooltips be hover or click?
4. Where should tooltips be placed?

When should you not use tooltip?

1. Don't use tooltips for information that is vital to task completion. Users shouldn't need to find a tooltip in order to complete their task.

How many types of tooltip are there?

There are two types of tooltips: Plain Tooltips. Rich Tooltips.

Should tooltips be hover or click?

A tooltip appears when the user hovers over a component or in-focus state. On mobile devices, the tooltip appears when a user clicks long on an element.

Where should tooltips be placed?

Tooltips should be placed near the object being hovered, usually at the pointer's tail or head if possible. However, tooltips should never be placed in a way that interferes with what the user is doing. Don't: cover the object the user is about to view or interact with.