HTML doesn't offer as clean a solution for vertical lines as it does for horizontal lines -- a vertical equivalent to the Set your image up within your text and add a "style" attribute tag. For ...

The image's width will be 400 pixels wide because that's the value defined in the stretchX CSS class. Return to your document and change 400 to any other value to make the image stretch to that width.

CSS Class (Text) The CSS Class field allows an author to provide an optional class name that will apply a style to the contents. See Styles section below for a list of styles that can be applied to a ...