You can edit / change the code and click run button
<!DOCTYPE html> <html> <body> <details> <summary>Copyright 2015.</summary> <p> - by SnoopCode. All Rights Reserved.</p> <p>All content, source codes and graphics on this web site are the property of the company SnoopCode.</p> </details> <p><b>Note:</b> The details tag is currently only supported in Opera, Chrome, and in Safari 6.</p> </body> </html>