Core Resources 22

New styles for card layouts in forms and a fix for date input validation styling.

Two accessibility fixes for the date picker form field.

Remove empty paragraph tags that were added by the disclosure styles.

Update the version of Handlebars.

Improvements to the styling of related panel headings.

Adds default box-sizing, display: fallback to reduce font loading impact, and removes the float from images at mobile widths.

Add support for displaying large images in Twitter cards.