* {
    font-family: Arial, Helvetica, sans-serif;
}
h1 {
    color: darkorange; 
    text-align: center;
}
h2 {
    color: darkorange;
}
h3 {
    color: darkorange;
}
.topnav {
    background-color: #333;
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
}
.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: #04AA6D;
    color: white;
}
.header {
    text-align: right;
    color: darkorange;
    font-weight: thin;
}
.footer {
    color: azure;
    text-align: right;
}
body {
    background-color: #191820;
}
li {
    color: slategray;
}
a {
    color: steelblue;
}
.disclaimer {
    color: azure;
}
.column {
    float: left;
    width: 50%;
}
.row:after {
    content: "";
    display: table;
    clear: both;
}