html, body {
height: 100%;
margin: 0px;
}

#header {
height: 70px;
background-color: aliceblue;
color: cornflowerblue;
line-height: 60px;
text-align: center;
}

#nav {
background-color: #C2C2C2;
height: calc(100% - 100px);
width: 100px;
float: left;
}

#nav a {
text-align: center;
display: block;
background-color: #c2c2c2;
padding: 8px;
color: #000;
text-decoration: none;
}

#nav a:hover {
background-color: #bbb;
color: #fff;
}

#main {
width: 500px;
padding: 25px;
float: left;
}

#footer {
height: 20px;
background-color: darkslategray;
color: cornflowerblue;
text-align: center;
clear: both;
}

.caption {
background-color: black;
color: pink;
text-align: right;
font-family: arial, Cambria, "Hoefler Text", "Liberation Serif", Times, "Times New Roman", "serif";
font-size: 8px;
padding: 6px;
}

.caption a {
color: white;
}