functions.php

Reusable WordPress functions to be installed in your theme's functions.php. In order...

• Remove width and height attributes from <img>s uploaded in the Media Uploader. This does not work retroactively on already uploaded images.
• Remove devicepx which is added by Jetpack which adds back width and height attributes on <img>s inline. Only use this if you're using Jetpack.
• Add custom CSS for non-admin users to WP Admin, useful for hiding stuff you don't want clients to see.
• Add a box to the WP Admin Dashboard page, useful for displaying any information your clients might need to see. I generally use this to link to "how to WordPress" guides and tech support information.
• Set sensible default options for the Media Uploader when a user embeds attachments. Use the full-size image URL, no alignment, and won't wrap it in a link.
• Hide the WordPress logo on the WP Admin login page. (I'd like to add more code to minimize the amount of WordPress branding elements on each page at some point.)

In the future

• I would like to prevent a user-created image caption from having a height attribute but couldn't find a function to do it. I currently override it in CSS: .wp-caption { max-width: auto; height: auto; }