body { background: #fff; }

.udselect {
  background: #ffffff;
  border: 1px solid #ACC0CA;
  border-radius: 4px;
  color: #000000;
  padding-right: 40px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

.udselect span.udselect-extension {
  color: #ffffff;
  background: #ACC0CA;
  height: 100%;
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
  padding-left: 7px;
  padding-right: 14px;
}

.udselect span.udselect-extension .fa { margin-left: -15px; }