.combo_select{
    padding: 6px 1px;
}
    .combo_wrapper , .combo_text_wrapper{
        position: relative;
        height: 28px;
    }
    .combo_wrapper div {
        position: relative;
        margin-right: 20px;
        /*top: -34px;*/
        top: -100%;
    }
    .combo_text {
        position: absolute;
        top: 0;
        left: 0;
        border-right: 0px!important;
        border-top-right-radius: 0px!important;
        border-bottom-right-radius: 0px!important;
    }

    .form-control{
        height: 28px;
    }