body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }
  
  header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
  }
  
  h1 {
    margin: 0;
  }
  
  .content {
    flex-grow: 1;
    padding: 20px;
  }
  
  footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
  }
  
  .counter-section {
    margin-top: 20px;
  }
  
  #counter {
    font-size: 1.5em;
    font-weight: bold;
    color: #007BFF;
    border: 2px solid #007BFF;
    padding: 10px 15px;
    border-radius: 8px;
    display: inline-block;
  }