--- title: Default CSS styles description: You can use CSS styles to control the appearance of elements in a theme. locale: en-US canonical_url: https://www.servicenow.com/docs/r/australia/platform-user-interface/r\_DefaultCSSStyle.html release: australia topic_type: reference last_updated: "2026-03-12" reading_time_minutes: 1 breadcrumb: [CSS theme support, Customizing instance appearance, User interface configuration, Working in Core UI, Configure UIs and portals, Configure user experiences] --- # Default CSS styles You can use CSS styles to control the appearance of elements in a theme. Your version of the UI determines which CSS styles you can use. ## Default CSS styles for Core UI \(UI16\) ``` $search-text-color: #ffffff $navpage-header-bg: #293e40 $navpage-header-color: #ffffff $navpage-header-divider-color: #5A7F71 $navpage-header-button-color: #ffffff $nav-highlight-main: #576667 $subnav-background-color: #213234 $navpage-nav-bg: #293e40 $navpage-nav-bg-sub: #293e40 $navpage-nav-color-sub: #d1d6d8 $nav-hr-color: #192628 $nav-highlight-bar-active: #82c9b8 $nav-highlight-bar-inactive: #213234 $navpage-nav-selected-bg: #2f4f4e $navpage-nav-selected-color: #82c9b8 $navpage-nav-unselected-color: #d1d6d8 $connect-latest-message: #B8E0D7 $navpage-nav-app-text: #ffffff $navpage-nav-border: #7a828a $navpage-button-color: #ffffff $navpage-button-color-hover: #82C9B8 ``` **Parent Topic:**[CSS theme support](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-user-interface/c_CSSThemeSupport.md) **Related topics** [Activating CSS theme support]() [Create or customize a theme]()