body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
  }
  
  header {
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 20px 0;
  }
  
  section {
    margin: 20px;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
  }
  
  #profile-img {
    width: 150px;
    border-radius: 50%;
    display: block;
    margin-top: 10px;
  }
  
  button {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #45a049;
  }
  
  a {
    color: #4CAF50;
    text-decoration: none;
  }
  
  a:hover {
    text-decoration: underline;
  }