div.ie-select {
    position:relative;
    display:inline-block;
    z-index:0
}
div.ie-select select {
    z-index:1;
}

div.ie-select:before {
    display:block;
    position:absolute;
    content:'';
    right:0px;
    top:0px;
    height:1em;
    width:1em;
    margin:2px;
    background:transparent;
    z-index:5;
}