.w_ddl option:nth-child(1){
    color:#fff;
     background: red;
}
.w_ddl option:nth-child(1):active  {
    color:red;
     background: red;
}
.w_ddl option:nth-child(2){
    color:#fff;
    background: blue;
}
.w_ddl option:nth-child(3){
    color:#fff;
    background: green;
}
.w_ddl option:nth-child(4){
    color:#fff;
    background: orange;
}
.w_ddl option:nth-child(5){
    color:#fff;
    background: pink;
}