Warning Sign in a Dialog Box
When you click the button, the dialog box with a warning sign will appear.
This will create an html file for "Warning !" automatically. Type the message on the button and the warning message in the boxes below. Then click the "Make an Html File" button.
Save the above html text with your editor as "xxx.htm".If you want to test how the homepage will be made, copy everything in the box and put it in the box on this page.