Replacing spaces with underscores? Is that something we should cleanup in the JSON file? I also noticed a lot of unnecessary escaping of forward slashes.

One more thought on URLs. Here's an example from the length link in padding-bottom:

```
<p>Specifies a positive fixed distance. See <a href=\"http:\/\/docs.webplatform.org\/w\/index.php?title=css\/properties\/length&amp;action=edit&amp;redlink=1\" class=\"new\" title=\"css\/properties\/length (page does not exist)\">length<\/a>
```

The embedded HTML link specifies a title. Can we rewrite this to display the actual link instead? Otherwise, the user has no idea what the destination URL is.