---

body {
    margin: 0;
    font-family: Arial;
    background: #dcdcdc;
}

.main-table {
    width: 100%;
    height: 100vh;
    border-collapse: collapse;
}

.page-table {
    width: 100%;
    height: 100vh;
    border-collapse: collapse;
}

.header {
    height: 80px;
    background: #444;
    color: white;
    text-align: center;
    font-size: 32px;
    font-weight: bold;
}

.menu {
    width: 250px;
    vertical-align: top;
    background: #bdbdbd;
}

.menu-table {
    width: 100%;
    border-collapse: collapse;
}

.menu-table td {
    border: 1px solid gray;
    text-align: center;
    height: 70px;
}

.menu-table a {
    text-decoration: none;
    color: black;
    font-weight: bold;
}

.menu-table a:hover {
    color: blue;
}

.content {
    text-align: center;
    vertical-align: middle;
    background: #f5f5f5;
}

h1, h2 {
    color: #333;
}

p {
    font-size: 18px;
}