Nothing in particular, but I feel like it's hard to memorize all the information.

Why is firefox, the best browser to use?  But I don't have many questions at the moment.

Can you talk more about what span does and how it differs from div / I'd like to know more about how to use the span tag as I've never heard of it before.

I'm a little bit confused about SPAN and what its purpose is. I understand that it's an inline element, but I'm not sure I completely understand what that means.

Do span tags have to be nested inside paragraph tags, or can you have all of your inline text in a span element? If you can, then why would you use <p> when you could use span?

why use span and div when we have semantic markup?

For each hyperlink in the Ottogram example, why would it been better to use figure and figcaption. What are the disadvantages of using img and span? How to we decide between the two? 

What exactly is <meta> and what it is used for. I see the definition says "used to say what character set the page uses; we will *always* use utf-8", but I am still a bit confused. 

Why do we use UTF-8? I know it says always but Im wondering why. 

What does "attribute" mean? Why do some tags have attributes written after them while some don't? Do all tags have attributes?

More examples of nested tags and when they should be used or not be used?

doing examples of when to use each tag

can we change the spacing? Can we come up with our own elements? For instance, if I want to divide my section using 8 hyphens, do I manually type 8 hyphens each time, or can I define an element and use that instead.