body {
    font-family: Arial, sans-serif;
    margin: 40px;
    background: #f8f8f8;
    line-height: 1.6;
}
.container {
    max-width: 900px;
    margin: auto;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h1, h2 {
    margin-top: 0;
}
img {
    max-width: 100%;
    border-radius: 8px;
    margin: 20px 0;
}

/* Add a black background color to the top navigation */
.topnav {
  background-color: #333;
  overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

/* Change the color of links on hover */
.topnav a:hover {
  background-color: #ddd;
  color: black;
}

/* Add an active class to highlight the current page */
.topnav a.active {
  background-color: #04AA6D;
  color: white;
}

/* Hide the link that should open and close the topnav on small screens */
.topnav .icon {
  display: none;
}