.dd .selected-item {
    display: block;
    width: 100%;
}

.dd select {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.dd {
    position: relative;
}

.dd .selected-item {
    position: relative;
    padding-right: 30px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dd .selected-item.prompt span {
    color: #999;
}

.dd .selected-item .fa {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}