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

.topnav a {
    float: left;
    color:#f2f2f2;
    text-align:center;
    padding: 16px 24px;
    font-size: 17px;
    text-decoration: none;
    display: block;
}

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

.topnav a:active {
    background-color: #ff1a1a;
    color: white;
}

.div {
    padding: 16px;
    background-color:lightskyblue;
}

footer {
    padding: 16px;
    background-color: #ff1a1a;
}
.div {
    background-color:white;
}

.img{
    border-color:papayawhip;
    border-style:dashed;
    border:7px;
    width:250px;
}