::slotted(selectors) and pseudo selectors
::slotted(input)::placeholder { color: red }
this.innerHTML = new Date().toISOString().split(/[T\.]/)[1]
No shadowDOM SELECT
Keeping the icon in lightDOM
No support in FF and SF
move OPTIONs 2 ways
Things I will probably never do list
assignedNodes
No-Library (pure JS), HTML, CSS, JavaScript