How can I bring the HTML hover tooltip to the forefront instead of it being hidden below other layers?

When displaying a table, I encountered an issue where tooltips were appearing behind the table labels despite attempting to increase the z-index of the hovered element. Is there a method to ensure that the tooltip appears above all other layers?

The problematic part is evident in the second cell at the beginning with number 2021. Although the tooltip is functioning, it seems to be obscured by the background.

Appreciate any help or insights on this matter.

Answer №1

Your tooltip appears below the hovered cell due to the top: 2.2em definition. To display it above, simply set top as a negative value.

If you've applied position: sticky to all th elements, tooltips for the header might not accommodate larger content like the one for "2021". Removing this positioning from the ths will allow full-size tooltips. Sticky behavior can be retained by applying it only to the first th.

th:first-child { 
  position: sticky; 
} 

There was an error in your CSS:

text-decoration: none z-index: 2;

To correct this, treat them as separate declarations:

text-decoration: none;
z-index: 2;

Here's a working example:

// Your CSS code with proper annotations and corrections
// Your HTML table markup

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