labelCss to viewWithBalloonTagsWhen elements are marked, wrap them in a single mark html node.
When elements are marked, wrap them in a single mark html node.
Show the label for the mark, if present, in-line with the emphasized content.
When elements are marked, wrap them in a single mark html node.
Show the label for the mark, if present, in a balloon centered above the emphasized content.
When elements are marked, add ::before and ::after elements indicating the start and end of the highlight.
(We can't use a mark HTML element here because of the tree structure of HTML)
Controls label animations.
Visible will fade in when first displayed. FadeOut will start visible and then fade out.