You may have noticed that images and video can now
be directly embedded in Rich Text areas on Vae. We have added 2
<v:text> to help you customize how these images and video are rendered:
asset_height - if this is a rich text field with
embedded assets such as video or images, setting this attribute will
scale these assets to be no bigger than this many pixels high.
asset_width - similar to asset_height, but for width.
More information here: http://docs.vaeplatform.com/v_text