Easy "3D CSS card flip" example

Let's see a very very basic integration of the awesome "card flip" effect with simple CSS3 properties. Feel free to use/share/contribute.

HTML

<div class="container">
  <select class="">
    <option value="" data-display-text="Fruits">None</option>
    <option value="apples">Apples</option>
    <option value="bananas">Bananas</option>
    <option value="oranges">Oranges</option>
  </select>
</div>

CSS

select {
  display: none;
}

.dropdown {
  background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0) 100%);
  background-repeat: repeat-x;
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#40FFFFFF', endColorstr='#00FFFFFF', GradientType=0);
  background-color: #f6f6f6;
  border-radius: 6px;
  border: solid 1px #eee;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.0075);
  box-sizing: border-box;
  cursor: pointer;
  display: block;
  float: left;
  font-size: 14px;
  font-weight: normal;
  height: 42px;
  line-height: 40px;
  outline: none;
  padding-left: 18px;
  padding-right: 30px;
  position: relative;
  text-align: left !important;
  transition: all 0.2s ease-in-out;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  white-space: nowrap;
  width: auto;
}
.dropdown:focus {
  background-color: #f1f1f1;
}
.dropdown:hover {
  background-color: #f3f3f3;
}
.dropdown:active, .dropdown.open {
  background-color: #f0f0f0 !important;
  border-color: #e4e4e4;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05) inset;
}
.dropdown:after {
  height: 0;
  width: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid #777;
  -webkit-transform: origin(50% 20%);
          transform: origin(50% 20%);
  transition: all 0.125s ease-in-out;
  content: '';
  display: block;
  margin-top: -2px;
  pointer-events: none;
  position: absolute;
  right: 10px;
  top: 50%;
}
.dropdown.open:after {
  -webkit-transform: rotate(-180deg);
          transform: rotate(-180deg);
}
.dropdown.open .list {
  -webkit-transform: scale(1);
          transform: scale(1);
  opacity: 1;
  pointer-events: auto;
}
.dropdown.open .option {
  cursor: pointer;
}
.dropdown.wide {
  width: 100%;
}
.dropdown.wide .list {
  left: 0 !important;
  right: 0 !important;
}
.dropdown .list {
  box-sizing: border-box;
  transition: all 0.15s cubic-bezier(0.25, 0,...

JavaScript

$('.flip').click(function(){
        $(this).find('.card').addClass('flipped').mouseleave(function(){
            $(this).removeClass('flipped');
        });
        return false;
    });