.ds-select {
    position: relative;
}

.ds-select-drop-down {
    position: absolute;
    z-index: 1;
}

    .ds-select-drop-down.show, .ds-select-drop-down.collapsing {
        padding: 5px;
        background: white;
        border: 1px solid lightgray;
        border-radius: 5px;
    }

    .ds-select-drop-down > div {
        padding: 5px;
        border-radius: 5px;
    }

        .ds-select-drop-down > div[selected] {
            background-color: #bce9ad;
        }