This going to sound like a dumb question but I see this in the opening <a> tag for the <img>'s. What does it mean?


Href # is a link to the top of the page. Href #some_id is a link to the element with id some_id.

Many developers use # as a placeholder for the address.


As factor said, its usually used as a place holder or as a link to an element with and id. Let me provide an example:

<a href="#contact">Contact Us!</a>

When you click this, it would find the element with the id "contact" on that page, and scroll down to it. This is how sometimes when you click tabs on the top of a page it scrolls the page down to that section.