Completed Shutterbugg codebit, and a couple questions

[Betsey Biggs]

First of all, here it is:

https://www.codecademy.com/betsbillabong/codebits/bHE28K

Secondly, my .container question has been answered; it's because of bootstrap! Also, I found the pull-right code really useful to learn.

Finally, a couple of questions:

(a) Why is that my <h1> font looks slightly different on codebit, a little less bold? All of the <h1> styling is exactly the same… is it just because of the way the code is rendered in Codebit? Browser rendering should be the same, since I'm using the same browser for both! The button looks slightly different, too.

(b) For some reason, <h3> is used in the example page, even though it's not overtly defined in the stylesheet. But when I use <h3> it doesn't work; I had to use <h4> to get it to be the right size. Any idea why this might be? Again, same browser.

Btw, I've just realized that I should have linked to '#' on all of the footer links, but I am too lazy to add the a links in right now, and short on time. And they're actually not linked in the example, either!

Thanks for any suggestions!