body {
    font-family: arial;
    text-align: center;
    background-color: #242824;
    margin: 0;
    padding: 0;
}
.logo {
    position: absolute;
    margin: auto;
    left: 0; right: 0;
    top: 100px;
}
.box {
    width: 600px;
    height: 300px;
    background-color: #181818;
    opacity: 0.7;

    position: absolute;
    left: 0; right: 0;
    top: 0; bottom: 0;
    margin: auto;

    max-width: 100%;
    max-height: 100%;
    overflow: hidden;
}
.content {
    color: #eeeeee;
    margin: 20px 20px 20px 20px;
    text-align: left;
    line-height: 1.5;
    font-size: 1.1em;
}
.bg {
    position: absolute;
    left: 0; right: 0;
    bottom: 0px;
    color: goldenrod;
}
.nav {
    text-align: left;
    margin-top: 10px;
    margin-left: 20px;
    font-size: 1.2em;
}
.navlink {
    margin-right: 16px;
}
a {
    text-decoration: none;
}
a:link {
    color: white;
}
a:visited {
    color: white;
}
a:hover {
    color: #49b129;
}