style.css

@import url("https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,900");

body { 
    background: url("bg.jpg") no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    color: #fff;
    font-family: 'Source Sans Pro', sans-serif;
    font-size: 15pt;
    font-weight: 300 !important;
    letter-spacing: -0.025em;
    line-height: 1.75em;
}

#content {
    min-height: calc(100vh - 100px);
    vertical-align: middle;
    text-align: center;
    margin-left: 10%;
    margin-right: 10%;
    padding-top: 40px;
}

#content-text {
    background: rgba(0,0,0,0.5);
    padding: 10px;
}

#content-text p {
    font-weight: 400;
}

#footer {
    text-align: center;
    height: 70px;
    font-size: 0.75em;
}

a {
    -moz-transition: border-color 0.2s ease-in-out;
    -webkit-transition: border-color 0.2s ease-in-out;
    -ms-transition: border-color 0.2s ease-in-out;
    transition: border-color 0.2s ease-in-out;
    border-bottom: dotted 1px;
    color: inherit;
    outline: 0;
    text-decoration: none;
}

a:hover {
    border-color: transparent;
}

#content nav {
    margin: 1.5em 0 0 0;
}

#content nav li {
    display: inline-block;
    height: 5.35em;
    line-height: 5.885em;
    position: relative;
    top: 0;
    width: 5.35em;
}

#content nav a {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-touch-callout: none;
    border: 0;
    display: inline-block;
}

#content nav a:before {
    border-radius: 100%;
    border: solid 1px #fff;
    display: block;
    font-size: 1.75em;
    height: 2.5em;
    line-height: 2.5em;
    position: relative;
    text-align: center;
    top: 0;
    width: 2.5em;
}

#content nav a:hover {
    font-size: 1.1em;
}

#content nav a:hover:before {
    background-color: rgba(255, 255, 255, 0.175);
    color: #fff;
}

#content nav a:active {
    font-size: 0.95em;
    background: none;
}

#content nav a:active:before {
    background-color: rgba(255, 255, 255, 0.35);
    color: #fff;
}

#content nav a span {
    display: none;
}