DOM

javascript - Advantages of createElement over innerHTML? - Stack Overflow

• url: https://stackoverflow.com/questions/2946656/advantages-of-createelement-over-innerhtml

.

Node - Web APIs | MDN

• url: https://developer.mozilla.org/en-US/docs/Web/API/Node

.

javascript - How to clone (and restore) a DOM subtree - Stack Overflow

• url: https://stackoverflow.com/questions/8702165/how-to-clone-and-restore-a-dom-subtree

.

javascript - Can I add arbitrary properties to DOM objects? - Stack Overflow

• url: https://stackoverflow.com/questions/4258466/can-i-add-arbitrary-properties-to-dom-objects

.

Making Elements Focusable with Tabindex - Snook.ca

• url: https://www.snook.ca/archives/accessibility_and_usability/elements_focusable_with_tabindex/

.

\<button>: The Button element - HTML: HyperText Markup Language | MDN

• url: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button

.