div.cke_dialog_ui_input_select {
    display: block !important;
    width: 100%;
}

.select2-container .select2-choice > .select2-chosen {
    line-height: 26px;
}

.select2-drop {
    width: 418px !important;
    z-index: 1000003;
}

.select2-drop .select2-search {
    display: block !important;
    width: auto !important;
}