html, body {
  margin: 0;
  padding: 0;
}

body {
  background: #f8f8f8;
}

div#wrapper {
  background: #fff;
  margin: 0 auto;
  padding: 0 0 1px 0;
  width: 800px;
  text-align: center;
  border-radius: 10px;
}

ul#gallery {
}

ul#gallery > li {
  vertical-align: text-bottom;
  height: 300px;
  display: inline-block;
  margin: 0 10px 0 0;
  position: relative;
}
ul#gagllery > li:last-of-type {
  margin: 0;
}

ul#gallery > li > img {
  height: inherit;
}

ul#gallery > li > div.attribution {
  display: none;
  background: #eee;
  color: #000;
  opacity: 0.9;
  width: inherit;
  height: 260px;
  position: absolute;
  margin: 0;
  padding: 20px 10px;
  top: 0;
  left: 0;
  text-align: left;
}

ul#gallery > li:hover > div.attribution {
  display: inline;
}