style.css

body {
    background-color: #c5c5c5;
    color: black;
    max-width: 600px;
    margin-top: 20px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
    font-family: monospace;
}

.toplinks {
    background: dimgrey;
    font-size: 20px;
    text-align: center;
    padding: 5px;
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.mainsect {
    background: #c5c5c5;
    font-size: 16px;
    text-align: justify;
    padding: 5px;
    margin-left: auto;
    margin-right: auto;
}

.figcapt {
    background: #c5c5c5;
    font-size: 14px;
    text-align: justify;
    padding: 10px;
    margin-top: -25px;
    margin-left: auto;
    margin-right: auto;
}

.contact {
    background: dimgrey;
    color: white;
    text-align: center;
    font-size:13px;
    padding: 0px;
    max-height: 35px;
    max-width: 350px;
    margin-left: auto;
}

a:link {
    color: white;
    text-decoration: none;
}

a:visited {
    color: white;
    text-decoration: none;
}

a:hover {
    color: black;
    text-decoration: none;
}

a:active {
    color: black;
    text-decoration: none;
}

#body a:link {
    color: black;
    text-decoration: none;
}

#body a:visited {
    color: black;
    text-decoration: none;
}

#body a:hover {
    color: white;
    text-decoration: none;
}

#body a:active {
    color: white;
    text-decoration: none;
}

.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
}