http://www.benmarshall.me/cross-browser-css-styled-select-lists/

24-3.css

body { font-family: Arial, 'DejaVu Sans', 'Liberation Sans', Freesans, sans-serif }

.prettyfied-select {
  height: 33px;
  display: inline-block;
  min-width: 200px;
  position: relative;
  background: #eee;
}

.prettyfied-select .prettyfied-select-box,
.prettyfied-select .dropDown {
  font-size: 11px;
  font-weight: bold;
  color: #444;
}

.prettyfied-select .prettyfied-select-box {
  position: absolute;
  height: 100%;
  width: 100%;
  line-height: 33px;
  cursor: pointer;
  background-image:url('../img/arrow.png');
  background-position: right 9px;
  background-repeat: no-repeat;
  border: 1px solid #ccc;
  border-radius: 2px;
}

.prettyfied-select .prettyfied-select-box span {
  padding-left: 8px;
}

.prettyfied-select .dropDown {
  position: absolute;
  z-index: 999;
  top: 32px;
  left: 0px;
  min-width: 200px;
  padding: 0;
  list-style-type: none;
  margin: 0;
  border: 1px solid;
  border-top: 0;
  background: #eee;
  border-radius: 0 0 2px 2px;
}

.prettyfied-select .prettyfied-select-box:hover,
.prettyfied-select .prettyfied-select-box.expanded,
.prettyfied-select .dropDown {
  border-color: #a4a4a4;
}

.prettyfied-select .dropDown.is-hidden {
  border-color: #ccc;
  box-shadow: none;
}

.prettyfied-select .dropDown li {
  display: block;
  line-height: 16px;
  padding: 8px 0 8px 8px;
  cursor: pointer;
}

.prettyfied-select .dropDown li.hover {
  background: #e5e5e5;
}

.prettyfied-select .dropDown li img {
  float: left;
  margin-right: 5px;
}
.prettyfied-select .dropDown li i {
  display: block;
  margin: 0 0 0 21px;
  font-weight: normal;
}