change color bg scrollbox

<style>
  #scroll4 {
    height: 100px;
    width: 100%;
    padding: 10px;
    background: #FEC3DC;
    border: 3px double #000;
    font: 16px Georgia, Garamond, Serif;
    overflow: auto;
  }

</style>
<div id="scroll4">
<strong>change bg</strong>
<p></p>
  text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text
</div>