Preparation Code Preparation HTML (this will be inserted in the <body>
of a valid HTML5 document in standards mode) (useful when testing DOM operations or including libraries) <div id ='box-outer' > <div id ='box' > </div > </div >
Setup JS var box = document .getElementById ('box' );
var outerbox = document .getElementById ('box-outer' );
box.innerHTML = 'sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>'
Teardown JS
box.innerHTML = 'sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>'