HTML · Table and list attributes

headers

Associates a data cell with the header cells that describe it. Complex tables only.

htmlRunnable example html course

Syntax

headers="h1 h2"

Example

Try it

<table><tr><th id="h1">Course</th></tr><tr><td headers="h1">CSS</td></tr></table>

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.