.-pd-selection-box-input {
    position: relative;
    height: 22px;
}

.-pd-selection-box-input > .-pd-selection-box-input-label {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    padding-left: 5px;
    line-height: 22px;
    font-size: 12px;
    box-sizing: border-box;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    border: 1px solid #AAAAAA;
    background-color:#FFFFFF;
}

.-pd-selection-box-input > 
.-pd-selection-box-input-button {
    vertical-align: top;
    font-size: 12px;
    position: absolute;
    right: 0;
    top: 0;
    width: 22px;
    height: 22px;
    border-color: #AAAAAA;
    box-sizing: border-box;
    padding: 0;
}