The DFN object represents an HTML <dfn> element.
We can access a <dfn> element via document.getElementById()
:
var x = document.getElementById("myDFN");
Click the button to set the color of the definition term to red.
<!DOCTYPE html> <html> <body> <dfn id="myDFN">Definition term</dfn> <button onclick="myFunction()">Test</button> <script> function myFunction() {/* w w w . j ava 2 s . co m*/ var x = document.getElementById("myDFN"); x.style.color = "red"; } </script> </body> </html>