Local Browser View Differs from Online Browser
I'm struggling with getting a navigation menu SSI that I've created to appear as intended. I've spent hours using the "right-click a file, then choose 'Open in Browser'" approach while modifying the SSI file to my satisfaction.
Sadly, when I viewed the pages in Safari and Chrome, the menu is totally DIFFERENT from the local browser viewing! My screen shots tell the tale.
Here's what the menu on my localhost page looks like. . . Note that I've deleted the "June 13" menu button from my markup (shown in the last screen shot), but that deletion doesn't appear to have been made when viewing the page locally.

And here's the preferred menu as it looks like on Safari. . .

Here's the menu's markup: It appears properly online, but doesn't show correctly when viewed using localhost, as shown in my first screen shot.

I'm new to PHP, SSI, and "Open in Browser using localhost. Please enlighten me.
Is there a reason that localhost doesn't update the modified SSI as it should? Is there something I need to do differently in order to use the local browser to view changed files in real time?
I want to be able to make changes that I can view locally without uploading my files prematurely to the world. But localhost doesn't appear to be working as expected.
Please help so I know what to do next. Thank you.
Warren
