search.css

body,
input[type="search"]{
  font-family: 
    HelveticaNeue, 'Helvetica Neue', HelveticaNeueRoman, 
    HelveticaNeue-Roman, 'Helvetica Neue Roman', Helvetica, 
    Tahoma, Geneva, Arial, sans-serif;
  font-size: 14px;
  line-height: 22px;
  font-weight: normal;
}

body{
  padding: 100px 0;
  background-color: #F8F8F8;
  color: #444;
}
.content{
  width: 500px;
  margin: 0px auto;
}

#search{
  background-color: rgba(255,255,255,0.9);
  border-bottom: 1px solid rgba(0,0,0,0.25);
  padding: 10px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  min-height: 40px;
  max-height: 40px;
  overflow: hidden;

  -webkit-transition: all .2s ease-in-out;
}

#search.active{
  padding: 40px 0 20px 0;
  background-color: #FFF;
  border-color: #4863CC;
  box-shadow: 0 3px 5px rgba(0,0,0,0.4);
  min-height: 200px;
  max-height: none;

   -webkit-animation: BounceOpen 0.5s 1;
}

@-webkit-keyframes BounceOpen {
  0%   { min-height: 40px; }
  50% { min-height: 240px; }
  80% { min-height: 185px; }
  100% { min-height: 200px; }
}

#search.active input{
  color: #000;
}

#search input{
  width: 100%;
  text-align: left;
  position: relative;
  left: -5px;
  padding: 5px 0;
  background-color: rgba(0,0,0,0);
  border: none;
  outline: none;
  -webkit-appearance: none;
  font-style: underline;
  color: #888;
  font-size: 18px;
  line-height: 26px;
}

#search .results{
  list-style-type: none;
  padding: 0;
  margin: 0;
  height: auto;
  font-size: 14px;
  font-weight: lighter;
  line-height: 18px;
  color: #888;
  -webkit-transition: all .2s ease-in-out;
}
#search .results li{
  cursor: pointer;
  padding: 15px 10px;
  margin: 0;
  border-top: 1px solid #BBB;
  position: relative;

  -webkit-animation: FloatIn 0.2s 1;
}

@-webkit-keyframes FloatIn {
  0%   { top: 30px; opacity: 0;}
  100% { top: 0; opacity: 1;}
}

#search .results li:first-child{
  color: #4863CC;
  border-color: #4863CC;
}

#search .results li:hover{
  background-color: #E1E7F8;
  border-color: #4863CC;
  color: #4863CC;
}