It looks like the
<button> was the change, for the better!
I'm having to get caught up on the new changes myself.
From the old
<input type="button"> specs...
<input> elements of type "button" are still perfectly valid HTML, the newer
<button> element is now the favored way to create buttons. Given that a
<button>’s label text is inserted between the opening and closing tags, you can include HTML in the label, even images.