.noselect {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
#showcase {
  width: 100%;
  height: 305px;
  margin-top: 12px;
  visibility: hidden;
}
#showcase img {
  cursor: pointer;
}
.nav {
  text-align: center;
}
.nav > button {
  width: 64px;
  height: 36px;
  color: #666;
  font: bold 16px arial;
  text-decoration: none;
  text-align: center;
  margin: 5px;
  text-shadow: 0px 1px 0px #f5f5f5;
  background: #f6f6f6;
  border: solid 2px rgba(0, 0, 0, 0.4);
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  -webkit-box-shadow: 0 0 9px 1px rgba(0, 0, 0, 0.4);
  -moz-box-shadow: 0 0 9px 1px rgba(0, 0, 0, 0.4);
  box-shadow: 0 0 9px 1px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}
.nav > button:active,
.nav > button.down {
  background: #dfdfdf;
  border: solid 2px rgba(0, 0, 0, 0.6);
  box-shadow: none;
}