> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://authorea.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Heading styles and how they affect export

Authorea supports a format-neutral writing environment, which means that articles all have the same look when viewed on Authorea, but may be exported to thousands of different styles to achieve desired formatting.

To take advantage of this Authorea relies on authors use of h1  h2  h3  to distinguish different headings upon export.

h1  produces a section heading which looks like this:
​
![](https://storage.crisp.chat/users/helpdesk/website/d38f777e-0276-4c52-8a15-b5855ac4903c/3205cdca-2945-471f-8e22-fb028c9133a7.png)

h2  produces a sub-section which looks like this:

![](https://storage.crisp.chat/users/helpdesk/website/d38f777e-0276-4c52-8a15-b5855ac4903c/6027b994-3a54-4fa9-98dd-c2d3e35d3c3c.png)
​
h3 produces a sub-sub-section which looks like this

![](https://storage.crisp.chat/users/helpdesk/website/d38f777e-0276-4c52-8a15-b5855ac4903c/cc499f46-bfe0-424d-899e-5a88a91314bd.png)​

You can use bold  to create a section that's not included in the table of contents and or sections.