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

#header {
height: 75px;
background-color: darkseagreen;
color: white;
line-height: 75px;
text-align: center;
}

#nav {
background-color: tan;
height: calc(95% - 95px);
width: 100px;
float: left;
}

#nav a {
text-align: center;
display: block;
background-color: tan;
padding: 10px;
color: #000;
text-decoration: none;
}

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

#main {
width: 600px;
padding: 20px;
float: left;
}

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

.caption {
background-color: tan;
color: white;
text-align: right;
font-family: arial, sans-serif;
font-size: 9px;
padding: 5px;
}

.caption a {
color: white;
}