The <<.def tag>> [[macro|Macros]] generates a tag pill for a specified tag. Clicking the tag pill opens a dropdown. This can be compared to the [[tag-pill Macro]] which also features other parameters.
<<.tip """If a [[list widget|ListWidget]] generates multiple tag macros for the same tag, clicking on one of them will open dropdowns on all of them. The simplest way to prevent this is to add the `counter="transclusion"` attribute to the list widget. See the examples below for more details.""">>
: This class is defined if a tag does ''not exist'' as a tiddler.
; `tc-tag-exists`
: This class is defined if a tag does exist as a tiddler
!!! Defining the class
To define the `tc-tag-missing` class a stylesheet tiddler needs to be created. The default font-style for missing tiddler links is //italic//, so it's used for the example code below. Eg: