<header>
  <h2 class="title">element.style.flexFlow</h2>
  <p class="description">Встановлює або повертає значення властивостей напрямку та обтікання flex-контейнера.</p>
</header>
<main>
  <div class="controls">
    <label for="direction">Direction:</label>
    <select id="direction">
      <option value="row">row</option>
      <option value="row-reverse">row-reverse</option>
      <option value="column">column</option>
      <option value="column-reverse">column-reverse</option>
    </select>
    <label for="wrap">Wrap:</label>
    <select id="wrap">
      <option value="nowrap">nowrap</option>
      <option value="wrap">wrap</option>
      <option value="wrap-reverse">wrap-reverse</option>
    </select>
    <button id="applyButton">Apply</button>
  </div>
  <div class="result" id="container">
    <div class="box">1</div>
    <div class="box">2</div>
    <div class="box">3</div>
    <div class="box">4</div>
    <div class="box">5</div>
  </div>
</main>

body {
  font-size: 16px;
  line-height: 1.5;
  font-family: monospace;
}

header {
  background-color: #f1f1f1;
  margin-bottom: 25px;
  padding: 15px;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}

header h2.title {
  padding-bottom: 15px;
  border-bottom: 1px solid #999;
}

header p.description {
  font-style: italic;
  color: #222;
}

.controls {
  margin-bottom: 15px;
}

.result {
  background-color: #f8f8f8;
  padding: 15px;
  display: flex;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}

.box {
  background-color: #4CAF50;
  color: white;
  padding: 20px;
  margin: 5px;
  text-align: center;
  flex: 1;
}

const container = document.getElementById('container');
const directionSelect = document.getElementById('direction');
const wrapSelect = document.getElementById('wrap');
const applyButton = document.getElementById('applyButton');

applyButton.addEventListener('click', () => {
  const direction = directionSelect.value;
  const wrap = wrapSelect.value;
  container.style.flexFlow = `${direction} ${wrap}`;
});

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