* {
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
}

#wrapper {
    width: 80%;
    margin: auto;
    border: thin solid black;
}

header {
    margin: 10px;
    padding: 10px;
    background-color: midnightblue;
    color: white;
}

header > img {
    width: 20%;
    float: right;
}

.clearright {
    clear: right;
}

nav {
    display: flex;
}

nav > div {
    flex: 1;
    text-align: center;
    margin: 10px;
    padding: 10px;
    background-color: whitesmoke;
}

nav > div > a {
    color: steelblue;
    text-decoration: none;
    font-weight: bold;
}

nav > div > a:hover {
    color: red;
    text-decoration: underline;
}

main {
    display: flex;
}

main > div {
    margin: 10px;
    padding: 10px;
}

.left {
    flex: 2;
}

.right {
    flex: 1;
    border: 1px solid #dddddd;
    background-color: white;
}

.shadow {
    color: white;
    text-shadow: 2px 2px 4px #000000;
}

table {
    border-collapse: collapse;
    width: 90%;
    margin-right: auto;
    margin-left: auto;
}

td, th {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
}

tr:nth-child(even) {
    background-color: whitesmoke;
}

.grad {
    background-image: linear-gradient(cornflowerblue, crimson);
}

.shad {
    box-shadow: 10px 10px 5px grey;
    margin: 15px;
}

.roundcorner {
    border-radius: 25px;
}

.whitetext {
    color: white;
    padding: 20px;
    font-size: 1.3em;
}

footer {
    background-color: midnightblue;
    margin: 10px;
    padding: 10px;
}

footer > p {
    color: white;
    text-align: center;
}