header {
    background-color: #f1f1f1;
    text-align: center;
    padding: 10px;
}

footer {
    background-color: lightgray;
    text-align: center;
    padding: 8px;
}
body {
    margin: 0;
    padding: 0;
}

h2, p {
    margin: 10px;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    background-color: #333333;
}

ul:after {
    content: "";
    display: table;
    clear: both;
}

ul li {
    float: left;
}

ul li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

ul li a:hover {
    background-color: #111111;
}

img{
    width: 500px;
    height: 450px
}

div.flex-container{
    display: flex;
    flex-direction: row;
    margin-left: 5%;
}

div.flex-container > div{
    margin: 10px;
    flex: 1;
    padding: 10px;
}

/* Dropdown menu styles */
.dropdown {
    position: relative;
    float: left;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #333333;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    top: 100%;
    left: 0;
}

.dropdown-content a {
    color: white;
    padding: 14px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.dropdown-content a:hover {
    background-color: #111111;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown:hover .dropbtn {
    background-color: #111111;
}