css: test online

Testez votre code HTML, CSS et JavaScript en temps réel

📝 Éditeur multi-langages

📄 HTML

<div class="card">
  <h1>Ma carte interactive</h1>
  <p>Ceci est un exemple de carte stylisée avec CSS.</p>
  <div class="counter">
    <button id="decrement">-</button>
    <span id="count">0</span>
    <button id="increment">+</button>
  </div>
  <p id="message" class="message"></p>
</div>

🎨 CSS

.card {
  background: linear-gradient(135deg, #2c3e66, #1a2a4a);
  padding: 25px;
  border-radius: 16px;
  color: white;
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.card h1 {
  font-size: 1.8em;
  margin-bottom: 10px;
}

.card p {
  font-size: 1em;
  margin-bottom: 20px;
  opacity: 0.9;
}

.counter {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin: 20px 0;
}

.counter button {
  background: #f1c40f;
  color: #2c3e66;
  border: none;
  width: 45px;
  height: 45px;
  font-size: 24px;
  font-weight: bold;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s;
}

.counter button:hover {
  background: #e67e22;
  transform: scale(1.1);
}

#count {
  font-size: 36px;
  font-weight: bold;
  min-width: 60px;
}

.message {
  font-size: 14px;
  margin-top: 15px;
  opacity: 0.8;
}

⚡ JavaScript

let count = 0;
const countElement = document.getElementById('count');
const messageElement = document.getElementById('message');

document.getElementById('increment').onclick = () => {
  count++;
  countElement.textContent = count;
  messageElement.textContent = '✨ Incrémenté !';
  messageElement.style.opacity = '1';
  setTimeout(() => messageElement.style.opacity = '0', 800);
};

document.getElementById('decrement').onclick = () => {
  count--;
  countElement.textContent = count;
  messageElement.textContent = '📉 Décrémenté !';
  messageElement.style.opacity = '1';
  setTimeout(() => messageElement.style.opacity = '0', 800);
};

✨ Aperçu en temps réel

Last modified: Tuesday, 16 June 2026, 12:07 AM