h1 {color:firebrick;}
h2 {color:firebrick;}
h3 {color:firebrick;}
body {font-family: 'Arial';}  

          .topnav {
              overflow: hidden;
              background-color: #365d95; 
            }

            .topnav a {
              float: left;
              color: #f2f2f2;
              text-align: center;
              padding: 14px 16px;
              text-decoration: none;
              font-size: 17px;
            }

            .topnav a:hover {
              background-color: #ddd;
              color: black;
            }

            .topnav a.active {
              background-color: firebrick;
              color: white;
            }