<header>
  <h2 class="title">element.style.fontWeight</h2>
  <p class="description">Змінює товщину шрифту тексту елементу.</p>
</header>
<main>
  <div class="result">
    <p id="text">Це приклад тексту для демонстрації властивості fontWeight.</p>
    <div>
      <label for="fontWeightRange">Товщина шрифту: <span id="weightValue">400</span></label>
      <input type="range" id="fontWeightRange" min="100" max="900" step="100" value="400">
    </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);
}

.result label {
  display: block;
  margin: 10px 0;
}

document.getElementById('fontWeightRange').addEventListener('input', function(event) {
  const weight = event.target.value;
  const textElement = document.getElementById('text');
  textElement.style.fontWeight = weight;
  document.getElementById('weightValue').textContent = weight;
});

External CSS

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External JavaScript

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