.custom-combobox {
        position: relative;
        display: inline-block;
    }

    .custom-combobox-toggle {
        position: absolute;
        top: 0;
        bottom: 0;
        margin-left: -1px;
        padding: 0;
    }

    .custom-combobox-input {
        margin: 0;
        padding: 5px 10px;
    }

    .ui-autocomplete {
        max-height: 200px;
        overflow-y: auto; /* prevent horizontal scrollbar */
        overflow-x: hidden; /* add padding to account for vertical scrollbar */
        z-index: 1000 !important;
    }