The list of required CSS classes is hard to find

[SergeyBiryukov]

While answering a question on support forums, I tried to find the list of CSS classes a WordPress theme is required to support (.alignleft, .screen-reader-text, etc.) in order to be included in the WordPress.org theme directory.

1. I've tried to search for the list here: ​https://developer.wordpress.org/themes/.
   • It does not have a search form.
   • Browsing the menu didn't help either.
   • Manually altering the URL to ​https://developer.wordpress.org/themes/?s=screen-reader-text didn't produce the expected result.

2. I've continued the search on ​https://make.wordpress.org/themes/handbook/.
   • It does not have a search form.
   • Browsing the menu didn't help either.
   • Manually altering the URL to ​https://make.wordpress.org/themes/handbook/?s=alignleft finally produced the ​expected result, but:
     • There's a notice at the top of the page saying it's deprecated, so linking to it in my answer is probably not a good idea.
     • The suggested replacement is ​https://make.wordpress.org/docs/handbook/, which doesn't have the list of required classes anywhere.

Is there a more recent page I've missed? Could we make it easier to find?

[ocean90]

Added the search widget to the handbook sidebar.

For the content itself I suggest to contact the theme review or docs team directly.

[SergeyBiryukov]

Replying to ocean90:

Added the search widget to the handbook sidebar.

At a glance, other handbooks would benefit from the widget too:

• ​https://developer.wordpress.org/themes/
• ​https://make.wordpress.org/docs/handbook/
• ​https://make.wordpress.org/meta/handbook/
• ​https://make.wordpress.org/polyglots/handbook/

Do we need a new ticket?

[ocean90]

Replying to SergeyBiryukov:

• ​https://developer.wordpress.org/themes/

See #1739.

• ​https://make.wordpress.org/docs/handbook/
• ​https://make.wordpress.org/meta/handbook/
• ​https://make.wordpress.org/polyglots/handbook/

Widget added.