style.css

@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 400;
  src: local('Lato Regular'), local('Lato-Regular'), url(https://fonts.gstatic.com/s/lato/v11/MDadn8DQ_3oT6kvnUq_2r_esZW2xOQ-xsNqO47m55DA.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215, U+E0FF, U+EFFD, U+F000;
}
@font-face {
  font-family: 'Source Sans Pro';
  font-style: normal;
  font-weight: 400;
  src: local('Source Sans Pro'), local('SourceSansPro-Regular'), url(https://fonts.gstatic.com/s/sourcesanspro/v9/ODelI1aHBYDBqgeIAH2zlJbPFduIYtoLzwST68uhz_Y.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215, U+E0FF, U+EFFD, U+F000;
}
@font-face {
  font-family: 'Source Sans Pro';
  font-style: normal;
  font-weight: 900;
  src: local('Source Sans Pro Black'), local('SourceSansPro-Black'), url(https://fonts.gstatic.com/s/sourcesanspro/v9/toadOcfmlt9b38dHJxOBGIq-Fb0zf838trI74uojZQY.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2212, U+2215, U+E0FF, U+EFFD, U+F000;
}
@font-face {
  font-family: 'FontAwesome';
  src: url('fontawesome-webfont.eot?v=3.0.1');
  src: url('fontawesome-webfont.eot?#iefix&v=3.0.1') format('embedded-opentype'),
    url('fontawesome-webfont.woff?v=3.0.1') format('woff'),
    url('fontawesome-webfont.ttf?v=3.0.1') format('truetype');
  font-weight: normal;
  font-style: normal;
}
/* General */
html {
  font-size: 1em;
}
body {
  font: 1em 'Source Sans Pro';
  margin: 0;
  background: #000;
  background-size: cover;
  color: #fff;
}
a {
  color: #fff;
  text-decoration: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
th {
  padding: 0;
  font-weight: normal;
}
td {
  padding: 0;
}

/* Header */
h1 {
  color: #fff;
  font-size: 2rem;
  margin: 0.65em 0;
}
h3 {
  margin: 0;
  text-transform: uppercase;
  font-weight: normal;
  text-align: center;
}
nav > ul {
  margin: 0;
  padding: 0;
}
.button,
nav li {
  display: block;
}
.button,
nav a {
  font: 1.25rem 'Lato';
  display: inline-block;
  width: 50%;
  color: #fff;
  border: 2px solid #fff;
  cursor: pointer;
  border-radius: 5px;
  padding: 0.3rem 0.6rem 0.4rem;
  margin: 0.5em;
  background: #000;
}
.button {
  margin: 0;
}
[class^="icon-"],
[class*=" icon-"] {
  font-family: FontAwesome;
  font-weight: normal;
  font-style: normal;
  text-decoration: inherit;
  margin: 0 0.4em 0 0;
  -webkit-font-smoothing: antialiased;
}
.icon-cog:before{content:'\f021'}

/* Content */
#content {
  display: table;
  margin: auto;
  background: rgba(0,0,0,0.7);
}

/* Canvases */
#sprite {
  display: none;
}
/*#bg {
  position: fixed;
  top:0;
  left:0;
  height:100%;
  width:100%;
  z-index: -1;
  opacity: 0;
  transition: opacity .5s ease-in;
}*/
#bg {
  position: fixed;
  top:0;
  left:0;
  height:100%;
  width:100%;
  z-index: -1;
}
#a {
  position: relative;
  overflow: hidden;
  float: left;
}
#b {
  border: 1px solid #fff;
  box-shadow: 0 0 20px rgba(255,255,255,0.5);
  position: relative;
  overflow: hidden;
  float: left;
  z-index: 3;
}
#c {
  padding: 0 0.5em;
  position: relative;
  overflow: hidden;
  float: left;
}
  #bgStack {
    background: #000;
    position: absolute;
    z-index: 2;
  }
  #hold,
  #preview,
  #stack {
    position: absolute;
    z-index: 2;
  }
  #active {
    position: absolute;
    z-index: 3;
  }
  #msg {
    font: 900 4rem 'Source Sans Pro', sans-serif;
    font-size: 4rem;
    color: #fff;
    position: absolute;
    text-align: center;
    width: 100%;
    line-height: 642px;
    margin: 0;
    z-index: 4;
  }

#d {
  float: left;
}

/* Stats */
#stats {
  display: block;
  position: absolute;
}
#stats tbody {
  display: block;
}
#stats tr {
  display: block;
  width: 100%;
  padding: 0 0.5rem;
}
#stats th {
  text-transform: uppercase;
  display: inline-block;
  width: 100%;
  vertical-align: top;
}
#stats td {
  font-size: 280%;
  font-weight: 900;
  text-align: center;
  line-height: 1;
  display: inline-block;
  width: 100%;
}
#time {
  text-align: center;
  font-weight: 900;
  font-size: 1.125em;
  display: block;
}

/* Menus */
.menu {
  text-align: center;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  margin-top: -200%;
  position: absolute;
  background: #000;
  background: rgba(0,0,0,0);
  top: 0;
  z-index: 50;
  opacity: 0;
  /*-webkit-transition: opacity .4s ease-in-out;
     -moz-transition: opacity .4s ease-in-out;
       -o-transition: opacity .4s ease-in-out;*/
          transition: opacity .8s ease-out,
                      background .4s ease-out .3s,
                      margin .4s ease-out;
}
.on {
  background: rgba(0,0,0,0.8);
  opacity: 1;
  margin: 0;
}

/* Controls */
#controls {
  margin: 0 auto 1em;
}
#controls th {
  font-weight: bold;
  text-align: left;
  line-height: 1.6;
}
#controls td {
  font-weight: bold;
  cursor: pointer;
  display: block;
  margin: 0.2em 0 0.2em 2em;
  text-align: center;
  width: 6em;
  line-height: 1.6;
  background: #111;
  border-radius: 5px;
}
#controls td:hover {
  background: #191919;
}

#controls td:active {
  background: #1a1a1a;
}


/* Settings */
.left,
.right {
  font-family: FontAwesome;
  font-weight: normal;
  font-style: normal;
  cursor: pointer;
  -webkit-font-smoothing: antialiased;
  -webkit-transition:all .1s ease-out;
  transition:all .1s ease-out
}
.left:hover,
.right:hover {
  color: #4da6ee;
}
.left:before,
.right:before {
  text-decoration: inherit;
  display: inline-block;
}
.left:before  { content: "\f022"; }
.right:before { content: "\f023"; }

#settings {
  margin: 0 0 1em;
}
#settings b {
  text-align: left;
  display: inline-block;
  width: 7em;
}
#settings span {
  text-align: center;
  font-weight: bold;
  display: inline-block;
  width: 5em;
  margin: 0.3em 0;
}

/* Special Menus */
#go {
  background: none;
  transition: opacity .8s ease-out .8s;
}
#go ul {
  width: 100%;
  position: absolute;
  bottom: 2em;
}

#pause {
  background: none;
  transition: opacity .8s ease-out;
}
#pause ul {
  width: 100%;
  position: absolute;
  bottom: 2em;
}