style.css

body {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  margin-top: auto;
  margin-bottom: auto;
  background: url('img/wood-weatheredelm.jpeg');
  font-size: 0;
  color: white;
}

#settings-toggle {
  font-size: 10px;
  position: fixed;
  top: 5px;
  right: 5px;
  color: #ccc;
}

#purge-storage {
  display: none;
  font-size: 10px;
  position: fixed;
  bottom: 5px;
  right: 5px;
  color: #c33;
}

ul {
  vertical-align: top;
  list-style-type: none;
  padding-left: 0;
  margin: 16px 0;
}

li {
  display: inline-block;
  margin: 0 8px;
  font-size: 14px;
}

li a {
  display: block;
  width: 78px;
  height: 78px;
  background-size: 100%;
  opacity: 0.9;
  background-image: url('img/custombg-silver.png');
}

li a:active {
  background-position-y: 100%;
}

li a:hover {
  opacity: 1;
}

li a img {
  margin-top: 6px;
  max-width: 66px;
  max-height: 66px;
}

li a div {
  position: relative;
  top: 6px;
  left: 6px;
  background-size: 100%;
  width: 66px;
  height: 66px;
}

li a div.dragover {
  background: yellow !important;
}

li .settings {
  display: none;
}

li .settings label, li .settings select, li .settings input.img-url {
  display: block;
}

li .settings input.img-url {
  width: 80px;
}

li .settings label input {
  vertical-align: -5px;
  margin-left: 10px;
}


.black       { background-image: url('img/custombg-black.png') }
.blue        { background-image: url('img/custombg-blue.png') }
.bright-blue { background-image: url('img/custombg-bright-blue.png') }
.green       { background-image: url('img/custombg-green.png') }
.orange      { background-image: url('img/custombg-orange.png') }
.pink        { background-image: url('img/custombg-pink.png') }
.purple      { background-image: url('img/custombg-purple.png') }
.red         { background-image: url('img/custombg-red.png') }
.yellow      { background-image: url('img/custombg-yellow.png') }