body {
    background-color: #e1e1e1;
    font-family: "Tahoma", "Geneva", sans-serif;
    font-size: 12px;
    margin: 20px;
}
table {
    border-collapse: collapse;
    background-color: #ffffff;
}
.header {
    background-color: #3b5998;
    color: #ffffff;
    padding: 10px;
    font-size: 18px;
    font-weight: bold;
    text-align: left;
}
.nav {
    background-color: #f0f0f0;
    border-bottom: 1px solid #cccccc;
    padding: 5px;
}
.nav a {
    color: #3b5998;
    text-decoration: none;
    margin-right: 15px;
    font-weight: bold;
}
.nav a:hover {
    text-decoration: underline;
}
.sidebar {
    width: 150px;
    vertical-align: top;
    background-color: #f7f7f7;
    border-right: 1px solid #cccccc;
    padding: 10px;
}
.content {
    padding: 20px;
    vertical-align: top;
}
.footer {
    background-color: #eeeeee;
    text-align: center;
    padding: 10px;
    font-size: 10px;
    border-top: 1px solid #cccccc;
}
.box {
    border: 1px solid #3b5998;
    margin-bottom: 10px;
}
.box-title {
    background-color: #3b5998;
    color: white;
    padding: 3px;
    font-size: 11px;
}
.box-content {
    padding: 5px;
}