> 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

# [Develop Websites SDK](https://dev.wix.com/docs/api/get-menu-content?url=https%3A%2F%2Fdev.wix.com%2Fdocs%2Fdevelop-websites-sdk&format=markdown.md)

## [Code Your Site](https://dev.wix.com/docs/develop-websites-sdk/code-your-site.md)


### [Build a Custom Frontend](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend.md)


#### [Event Handlers](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/event-handlers.md)


- [About Event Handlers](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/event-handlers/about-event-handlers.md)

- [Add an Event Handler](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/event-handlers/add-an-event-handler.md)

- [About Static Event Handlers](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/event-handlers/about-static-event-handlers.md)


#### [CSS](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/css.md)


- [About Custom CSS](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/css/about-custom-css.md)

- [Apply Custom CSS Styles](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/css/apply-custom-css-styles.md)

- [Site Theme CSS Variables](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/css/site-theme-css-variables.md)


#### [Page Elements](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/page-elements.md)


- [About Element Size Changes and Page Layout](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/page-elements/about-element-size-changes-and-page-layout.md)


#### [Forms](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/forms.md)


- [About Forms](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/forms/about-forms.md)


#### [Page Rendering](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/page-rendering.md)


- [About Page Rendering](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/page-rendering/about-page-rendering.md)

- [Optimize Page Rendering with Warmup Data](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/page-rendering/optimize-page-rendering-with-warmup-data.md)

- [About Warmup Data](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/page-rendering/about-warmup-data.md)


#### [URLs](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/urls.md)


- [About the URL Structure of Site Pages](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/urls/about-the-url-structure-of-site-pages.md)


#### [Triggered Emails](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/triggered-emails.md)


- [About Triggered Emails](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/triggered-emails/about-triggered-emails.md)

- [Create a Triggered Email](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/triggered-emails/create-a-triggered-email.md)


#### [Mobile](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/mobile.md)


- [About Mobile Sites with Code](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/mobile/about-mobile-sites-with-code.md)


#### [Custom Code](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/custom-code.md)


- [About Custom Code](https://dev.wix.com/docs/develop-websites-sdk/code-your-site/build-a-custom-frontend/custom-code/about-custom-code.md)