how to style the down arrow in select code example

Example 1: change select arrow css

select {
    width: 268px;
    padding: 5px;
    font-size: 16px;
    line-height: 1;
    border: 0;
    border-radius: 5px;
    height: 34px;
    background: url(http://cdn1.iconfinder.com/data/icons/cc_mono_icon_set/blacks/16x16/br_down.png) no-repeat right #ddd;
    -webkit-appearance: none;
    background-position-x: 244px;
}

Example 2: css style select arrow color

.select_box{
  width: 200px;
  overflow: hidden;
  border: 1px solid #000;
  position: relative;
  padding: 10px 0;
}
.select_box:after{
  width: 0; 
  height: 0; 
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid #f00;
  position: absolute;
  top: 40%;
  right: 5px;
  content: "";
  z-index: 98;
 }
.select_box select{
  width: 220px;
  border: 0;
  position: relative;
  z-index: 99;
  background: none;
}