body {
    background-color: #f2f2f2;
}

.header {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    background-color: dimgrey;
    color: #f2f2f2;
    text-align: center;
    font-size: .8em;
    padding: 6px;
}

.container {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: dimgrey;
    color: #f2f2f2;
    text-align: center;
    font-size: .8em;
    padding: 6px;
}

.header a, .footer a {
    color: #f2f2f2;
    border-bottom: 1px dotted;
}