body {
      margin: 0;
      padding: 0;
    }

    header, footer {
      background-color: #3D3A3A;
      color: white;
    }

    .main-content {
      padding: 60px 20px;
      text-align: center;
    }

    .main-content img {
      max-width: 100%;
      height: auto;
      margin: 20px;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }