6 <div id=
"container"><div id=
"host"></div></div>
8 var host
= document
.getElementById("host");
9 var root
= host
.attachShadow({mode
: 'open'});
10 root
.innerHTML
= 'inside shadow DOM';
12 var container
= document
.getElementById("container");
13 container
.removeChild(host
);
14 container
.appendChild(host
);