IDENT
FUNCTION
AT-KEYWORD
HASH
STRING
URL
NUMBER
DIMENSION
PERCENTAGE
UNICODE-RANGE
COMMENT
CDO
CDC
SQL
image() function
<![CDATA[
image() = image( <image-tags>? [ <image-src>? , <color>? ]! )
<image-tags> = [ ltr | rtl ]
<image-src> = [ <url> | <string> ]]]>
glob pattern
Alternating alphanums and * chars
CSS grid-auto-flow property