.tp-dropdownCallout--searchable .ms-Dropdown-items:first-child div[role=group]:first-child{z-index:1;background-color:var(--white);position:sticky;top:0}.tp-dropdownCallout.dropdown-options .dropdown-options{white-space:normal;border-bottom:1px solid #eee;width:100%;padding:8px 12px;font-size:12px;line-height:1.6}