When I successfully login to central, I get redirected back to the login page. I've tried multiple browsers and even tried resetting my password with no luck. There is no message telling what is wrong.
There was a small unscheduled maintenance to the Central platform.
You should no longer encounter this issue.
Rich Text Editor.
To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph.
An inline formatting menu will show up when you select text. Hit tab to get into that menu.
Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.