eat: no-repeat;
        background-size: 100px 10em;
      }
    </style>
  </head>

  <body>
    <section class="preview">
      <div class="box"></div>
    </section>

    <textarea class="playable playable-css" style="height: 120px">
.box {
  background-image: url(balloons.jpg);
  background-repeat: no-repeat;
  background-size: 100px 10em;
}</textarea
    >

    <textarea class="playable playable-html" style="height: 130px">
<div class="box"></div></textarea
    >

    <div class="playable-buttons">
   