Edit The Code:
See Result »
Try it Yourself - ©
w3ii.com
<!DOCTYPE html> <html> <head> <style> #myDiv { border: 1px solid red; } </style> </head> <body> <div id="myDiv" style="outline-style:dotted;">This is a div element.</div> <br> <button type="button" onclick="myFunction()">Return outline style</button> <script> function myFunction() { alert(document.getElementById("myDiv").style.outlineStyle); } </script> </body> </html>