h1 {
    text-align: center;
    color: #ccc;
    margin-left: 25%;
    margin-right: 25%;
}

body {
    color: #ccc;
    margin-left: 25%;
    margin-right: 25%;
    background-color: #121212;
}

/* unvisited link */
a:link {
    color: rgb(38, 132, 255);
}

/* visited link */
a:visited {
    color: rgb(0, 57, 163);
}

/* Add a black background color to the top navigation */
.topnav {
    background-color: #121212;
    overflow: hidden;
    align-self: center;
}
  
/* Style the links inside the navigation bar */
.topnav a {
    float: left;
    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 a color to the active/current link */
.topnav a.active {
    background-color: #045aaa;
    color: white;
}