> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: $w ## Namespace: collapsible-text ## Article: CSS Classes ## Article Link: https://dev.wix.com/docs/velo/velo-only-apis/$w/collapsible-text/css-classes.md ## Article Content: # Collapsible Text CSS Classes > **Note:** This feature is only available to Wix Studio users. You can use the classes listed below to style your `CollapsibleText` elements with CSS. For more information on styling your elements with CSS, see [Styling Elements with CSS]($w/styling-elements-with-css) and the [MDN CSS reference docs](https://developer.mozilla.org/en-US/docs/Learn/CSS).
__Important:__ Element structure and undocumented class names may change without advance warning. To avoid unintended style changes to your site, select elements with the documented class names only.## `.collapsible-text` Targets collapsible text elements. For example: ```css .collapsible-text { display: flex; flex-flow: column-reverse; } ``` ## `.collapsible-text__button` Targets collapsible text button elements. For example: ```css .collapsible-text__button { width: 200px; cursor: default; background-color: #116dff; } ``` ## `.collapsible-text__text` Targets text in collapsible text elements. For example: ```css .collapsible-text__text { font-family: sans-serif; font-weight: 700; color: black; } ```