before deletion <div class="ad"> A DELETION </div> beyond the deletion
before insert <div class="i">THE INSERT</div>after insert
Before replacement<div class="ar">REPLACED</div><div class="r">REPLACEMENT</div>
<DIV class="ex">EXPLANATION SHOULD DISAPPEAR</div>beyond the replacement

TRY NEXTED DIV
before insert<div class="i">THE INSERT <div>WITH NESTED DIV</div> AND SECOND HALF OF INSERT</div>beyond insert

LEAVE COMMENTARY
Before commentary<div class="c">the commentary</div>beyond commentary