Place your pointer in the box, right click and choose "select all" from the popup menu, this will highlight the text . Then you right click again to select "copy" from the popup menu.( If you deleted any of the code while trying to select it, refresh the page and the correct source will appear in the text field again. )

Now you have the code in clipboard. You can then paste the code into your webpage by holding placing the pointer where you want the code to go. Right click and from the pop-up window, choose "paste". When you have the code inserted into your webpage, and have loaded on your server, you will see this button appear:

And it will look like this:

THANKS!