The THead object represents an HTML <thead> element.
We can access a <thead> element via document.getElementById()
:
var x = document.getElementById("myTHead");
Click the button to change the style of the THEAD element.
<!DOCTYPE html> <html> <head> <style> table, th, td { border: 1px solid black; } </style>//from w w w. jav a2s . c om </head> <body> <table> <thead id="myTHead"> <tr> <th>Header 1</th> <th>Header 2</th> </tr> </thead> <tbody> <tr> <td>Cell 1</td> <td>Cell 2</td> </tr> <tr> <td>Cell 3</td> <td>Cell 4</td> </tr> </tbody> </table> <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myTHead"); x.style.color = "red"; } </script> </body> </html>