JavaScript-Course/ass9.html at main · Dhanushpolagani/JavaScript-Course · GitHub

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<!DOCTYPE html>
 <html>
 <head>
   <title>Interactive Counter</title>
   <style>
     body {
       font-family: 'Times New Roman', Times, serif;
       display: flex;
       flex-direction: column;
       align-items: center;
       justify-content: center;
       height: 100vh;
       margin: 0;
       background: #f0f8ff;
     }

     h1 {
       margin-bottom: 30px;
     }

     .counter {
       font-size: 48px;
       margin: 20px 0;
       padding: 10px 30px;
       border: 2px solid #9dd8ff;
       border-radius: 8px;
       color: #9dd8ff;
       background-color: #ffffff;
     }

     .buttons {
       display: flex;
       gap: 20px;
     }

     button {
       padding: 10px 20px;
       font-size: 18px;
       border: none;
       border-radius: 5px;
       background-color: #9dd8ff;
       color: white;
       cursor: pointer;
       transition: background-color 0.3s;
     }

     button:hover {
       background-color: #9dd8ff;
     }

     button:disabled {
       background-color: #cccccc;
       cursor: not-allowed;
     }
   </style>
 </head>
 <body>

   <h1>Interactive Counter</h1>

   <div class="counter" id="counter">0</div>

   <div class="buttons">
     <button onclick="decrement()" id="decrementBtn">Decrement</button>
     <button onclick="increment()">Increment</button>
   </div>

   <script>
     let count = 0;

     const counterDisplay = document.getElementById("counter");
     const decrementBtn = document.getElementById("decrementBtn");

     function updateDisplay() {
       counterDisplay.textContent = count;
       decrementBtn.disabled = count === 0;
     }

     function increment() {
       count++;
       updateDisplay();
     }

     function decrement() {
       if (count > 0) {
         count--;
         updateDisplay();
       }
     }

     updateDisplay();
   </script>

 </body>
 </html>