Open the page using an Internet browser to test the functionality of your drop-down list. When the item is chosen, the associated Web page opens in a new window.

Today’s quick tip explains how to use special web protocols inside hypertext links to force web pages or files to open with particular browsers on Windows or iOS. To see for yourself how to ...

In previous versions of Microsoft Outlook (the classic app), you could view the HTML code of an email by opening the email, right-clicking on it, and selecting “View source” from the context menu.