body {
    background-color: peachpuff;
    font-family: Arial, Helvetica, sans-serif;
}
h1 {
    color: grey;
    font-family: 'Times New Roman', Times, serif;
}
h2 {
    font-family: 'Times New Roman', Times, serif;
}
a {
    color: slateblue;
}
nav ul {
    background-color: sandybrown;
    border-width: 2px;
    border-style: solid;
    border-radius: 10px;
    border-color: seashell;
    padding: 10px;
}
nav ul li {
    list-style-type: none;
    display: inline;
    margin-left: 10px;
    margin-right: 10px;
    color: papayawhip;
}
nav ul li a {
    text-decoration: none;
    color: olive;
}
img {
    border-radius: 30px;
    width: 400px;
}
div {
    position: relative;
    padding-bottom: 40%;
}
table, th, td {
    border: 1px solid honeydew;
    border-collapse: collapse;
}
tr {
    background-color: palegoldenrod;
}
th, td {
    vertical-align: top;
    text-align: left;
    padding: 5px;
    color: purple;
}
iframe {
    position: absolute;
    width: 100%;
    height: 100%;
}