this is a box - you can put special content into it, if you want. use class="center" to center
text.
want to put two boxes next to each other? or text next to an image?
use a div class="flex"!
^ that's an hr - a little dividing line to put between elements.
image gallery
you can put text here, too, if you want. the number of columns will change depending on how wide the window
is, making it responsive to view on phone screens!
don't want columns? just remove the class = "columns" bit. (this is good for
things like posting comic pages, since columns can mess with the order of your images.)
you can use the figure & figcaption elements if you want to add captions to your images
