.x-checkboxcombo-list {
    background-color: #DDECFE;
    border: 1px solid #98C0F4;
    overflow: hidden;
}

.x-checkboxcombo-list-inner {
    background-color: #FFFFFF;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
}

    .x-checkboxcombo-list-inner .x-form-item {
        border: 1px solid #FFFFFF;
        font: 12px tahoma,arial,helvetica,sans-serif;
        overflow: hidden;
        padding: 2px;
        white-space: nowrap;
        margin: 0px;
    }

    .x-checkboxcombo-list-inner .x-checkboxcombo-item-over {
        background-color: #DFE8F6;
        border-color: #A3BAE9 !important;
        border: 1px dotted !important;
        cursor: pointer;
        background-color: #DFE8F6;
        border-color: #A3BAE9 !important;
    }


    .x-checkboxcombo-list-inner .x-form-cb-label {
        display: inline !important;
    }