Tooltips identify elements or provide additional, useful information about the referring elements.


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Numbered diagram of a tooltip structure
Tooltip structure
  1. Container: Wraps the content.
  2. Text: Concisely describes the referring element or its purpose.
  3. Tip: Points to the referring element.


When to use

  • Show the same data in a different format, such as date or timestamps.
  • Display a full string of text that is shortened with an ellipsis ().
  • Provide context for unlabeled items such as icon buttons, except for certain cases.

When not to use

Consider using a popover for the following scenarios:

  • Display information required for task completion, such as password formatting hints.
  • Display more than a single line of information or dimensional data, such as user name or status.
  • Display a sophisticated layout and formatting.
  • Offer simple controls and/or actions that are closely tied to the element or object, such as searchable list, links, or buttons.


  • By default, tooltips are placed on top of the referring element.
  • When there isn’t enough space in the viewport, the tooltip is moved to the side or below as needed.
  • If it blocks related content, the preferred tooltip placement can be manually set.
  • Should have no space (0px) between themselves and their target.
  • Remain in place while the cursor moves within the target.
  • Should never obscure the target element.
  • Content within a tooltip uses center-alignment.
  • Wraps when the content is wider than the max-width.


  • Fades in upon hover or focus on the trigger element.
  • Remains open until the cursor moves outside of itself or the trigger, or focus is moved away from the trigger.

Tooltip delay

Similar to popovers, a tooltip has a default delay of 500ms on show to help confirm hover intent and ensure that:

  • A user doesn’t accidentally hover an element with a tooltip, which might cover an adjacent element they intended to select.
  • The UI isn't constantly showing tooltips when a user is moving their mouse over the page.

Overriding the show delay for a tooltip is strongly discouraged for the reasons above, but there are useful circumstances for a tooltip to appear instantly. For example, pipeline icons that are visually the same, but have unique tooltip text that a user relies on to determine the pipeline status. Here, a delay would make it cumbersome to decipher the pipeline while hovering from one icon to the next. To shorten the delay in these cases, utilize ds### in the tooltip directive, where ### is the milliseconds of delay.

Here's an example of a tooltip directive with a 0ms delay (instant) on show:



  • Should be short and concise.
  • Shouldn’t repeat information that is shown near the referring element.


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