<div class="tabs-container">
  <div class="tab-buttons">
    <button class="tab-button active" data-tab="tab1">Tab 1</button>
    <button class="tab-button" data-tab="tab2">Tab 2</button>
    <button class="tab-button" data-tab="tab3">Tab 3</button>
  </div>
  <div class="tab-content active" id="tab1">
    <p>Content for Tab 1. This is the initially visible tab content.</p>
  </div>
  <div class="tab-content" id="tab2">
    <p>Content for Tab 2. This section becomes visible when Tab 2 is clicked.</p>
  </div>
  <div class="tab-content" id="tab3">
    <p>Content for Tab 3. Each tab can hold different information.</p>
  </div>
</div>

body {
  font-family: Arial, sans-serif;
  padding: 20px;
  background-color: #f9f9f9;
  display: flex; justify-content: center; align-items: center; min-height:100vh;
}
.tabs-container {
  max-width: 600px;
  width: 100%;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  overflow: hidden;
}
.tab-buttons {
  display: flex;
  background-color: #eef2f5;
}
.tab-button {
  padding: 15px 20px;
  cursor: pointer;
  border: none;
  background-color: transparent;
  font-size: 1em;
  color: #555;
  transition: background-color 0.3s, color 0.3s;
  flex-grow: 1; /* Distribute space equally */
  text-align: center;
  border-bottom: 3px solid transparent;
}
.tab-button:hover {
  background-color: #dfe6eb;
  color: #333;
}
.tab-button.active {
  color: #007bff;
  border-bottom: 3px solid #007bff;
  font-weight: bold;
}
.tab-content {
  display: none;
  padding: 20px;
  line-height: 1.6;
  color: #333;
  animation: fadeInContent 0.5s ease;
}
.tab-content.active {
  display: block;
}
@keyframes fadeInContent {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

document.addEventListener('DOMContentLoaded', function() {
  const tabButtons = document.querySelectorAll('.tab-button');
  const tabContents = document.querySelectorAll('.tab-content');

  tabButtons.forEach(button => {
    button.addEventListener('click', () => {
      // Remove active class from all buttons and contents
      tabButtons.forEach(btn => btn.classList.remove('active'));
      tabContents.forEach(content => content.classList.remove('active'));

      // Add active class to the clicked button and corresponding content
      button.classList.add('active');
      const tabId = button.getAttribute('data-tab');
      document.getElementById(tabId).classList.add('active');
    });
  });
});