<header>
  <h2 class="title">alignSelf</h2>
  <p class="description">Вирівнює елемент вздовж перпендикулярної осі контейнера з макетом flexbox або grid.</p>
</header>
<main>
  <div class="result">
    <div class="container">
      <div class="item">Елемент 1</div>
      <div class="item">Елемент 2</div>
      <div class="item">Елемент 3</div>
    </div>
    <div class="controls">
      <label>
        <input type="radio" name="alignment" value="auto" checked> auto
      </label>
      <label>
        <input type="radio" name="alignment" value="flex-start"> flex-start
      </label>
      <label>
        <input type="radio" name="alignment" value="flex-end"> flex-end
      </label>
      <label>
        <input type="radio" name="alignment" value="center"> center
      </label>
      <label>
        <input type="radio" name="alignment" value="stretch"> stretch
      </label>
      <label>
        <input type="radio" name="alignment" value="baseline"> baseline
      </label>
    </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;
}

.result {
  background-color: #f8f8f8;
  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);
}

.container {
  display: flex;
  height: 200px;
  align-items: flex-start;
}

.item {
  background-color: lightgray;
  padding: 10px;
  margin: 5px;
}
const container = document.querySelector('.container');
const items = document.querySelectorAll('.item');
const alignmentRadios = document.querySelectorAll('input[name="alignment"]');

alignmentRadios.forEach(radio => {
  radio.addEventListener('change', () => {
    const alignment = radio.value;
    items.forEach(item => {
      item.style.alignSelf = alignment;
    });
  });
});

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