body {
    background-color: #a1c0ed;
    text-align: left;
}

h1 {
   color: red;
   font-family: monospace;
}


.topnav {
    background-color: #333;
    overflow: hidden;
}

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

.topnav a:hover {
    background-color: #ff0000;
    color: black;
}

.topnav a.active {
    background-color: #ff0000;
    color: white;
}

h3 {
    color: red;
}