beforebegin

afterend


PASS insertAdjacentHTML(beforebegin, <h3>beforebegin</h3> )
PASS insertAdjacentHTML(afterbegin, <h3>afterbegin</h3> )
PASS insertAdjacentHTML(beforeend, <h3>beforeend</h3> )
PASS insertAdjacentHTML(afterend, <h3>afterend</h3> )