<header>
  <h2 class="title">element.style.borderRightWidth</h2>
  <p class="description">Задає ширину правої рамки елемента.</p>
</header>
<main>
  <div class="result">
    <div id="myElement" style="padding: 20px; border-right: 2px solid black;">Текст з правою рамкою</div>
    <!-- Повзунок для вибору ширини правої рамки -->
    <form id="borderForm">
      <label for="borderWidth">Ширина правої рамки (px):</label>
      <input type="range" id="borderWidth" name="borderWidth" min="0" max="20" value="2" oninput="updateBorderWidth()">
      <span id="borderWidthValue">2px</span>
    </form>
  </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);
}

#myElement {
  margin-top: 15px;
  transition: border-right-width 0.3s;
}
function updateBorderWidth() {
  let element = document.getElementById('myElement');
  let borderWidthSlider = document.getElementById('borderWidth');
  let borderWidthValue = document.getElementById('borderWidthValue');
  let width = borderWidthSlider.value + 'px';
  element.style.borderRightWidth = width;
  borderWidthValue.textContent = width;
}

External CSS

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External JavaScript

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