ok lets try some more bikeshed syntax for property descriptor disambiguation

Author: svgeesus

css-fonts-4/Overview.bs

@@ -933,7 +933,7 @@ Shorthand font property: the 'font' property</h3>
 
 <pre class="propdef">
 Name: font
-Value: [ [ <<'font-style'>> || <<font-variant-css21>> || <<'font-weight'>> || <<font-stretch-css3>> ]? <<'font-size'>> [ / <<'line-height'>> ]? <<'font-family'>> ] | caption | icon | menu | message-box | small-caption | status-bar
+Value: [ [ <<'font-style'>> || <<font-variant-css21>> || <<'font-weight'>> || <<font-stretch-css3>> ]? <<'font-size'>> [ / <<'line-height'>> ]? <<'font-family!!property'>> ] | caption | icon | menu | message-box | small-caption | status-bar
 Initial: see individual properties
 Applies to: all elements
 Inherited: yes
@@ -946,7 +946,7 @@ Animatable: see individual properties
 The 'font' property is,
 except as described below,
 a shorthand property for setting
-'font-style', 'font-variant', 'font-weight', 'font-stretch', 'font-size', 'line-height', 'font-family'
+'font-style', 'font-variant', 'font-weight', 'font-stretch', 'font-size', 'line-height', 'font-family!!property'
 at the same place in the stylesheet.
 Values for the 'font-variant' property can also be included
 but only those supported in CSS 2.1;
@@ -988,26 +988,30 @@ shorthand property; instead, use the individual property.
 	height percentage ("110%") refers to the font size of the element
 	itself.
 
-	The first three rules do not specify the 'font-variant' and 'font-weight' explicitly, so these properties
+	The first three rules do not specify the 'font-variant!!property' and
+	'font-weight!!property' explicitly, so these properties
 	receive their initial values (''font-variant/normal''). Notice that the font family
 	name ''"new century schoolbook"'', which contains spaces, is enclosed in
-	quotes. The fourth rule sets the 'font-weight' to ''bold'', the 'font-style' to ''italic'', and implicitly sets
-	'font-variant' to ''font-variant/normal''.
+	quotes. The fourth rule sets the 'font-weight!!property' to ''bold'',
+	 the 'font-style!!property' to ''italic'', and implicitly sets
+	'font-varian!!propertyt' to ''font-variant/normal''.
 
-	The fifth rule sets the 'font-variant' (''small-caps''), the 'font-size' (120% of the
-	parent's font size), the 'line-height' (120% of the font size) and the 'font-family'
-	(''fantasy''). It follows that the keyword <css>normal</css> applies to the two
-	remaining properties: 'font-style' and 'font-weight'.
+	The fifth rule sets the 'font-variant!!property' (''small-caps''), the 'font-size!!property' (120% of the
+	parent's font size), the 'line-height!!property' (120% of the font size) and the
+	'font-family!!property' (''fantasy''). It follows that the keyword <css>normal</css>
+	applies to the two remaining properties: 'font-style!!property' and 'font-weight!!property'.
 
-	The sixth rule sets the 'font-style', 'font-stretch', 'font-size', and 'font-family', the other font
+	The sixth rule sets the 'font-style!!property', 'font-stretch!!property',
+	'font-size!!property', and 'font-family!!property', the other font
 	properties being set to their initial values.
 
-	The seventh rule sets 'font-style' to ''oblique 25deg'', 'font-weight' to ''753'', and 'font-stretch' to ''condensed''.
+	The seventh rule sets 'font-style!!property' to ''oblique 25deg'',
+	'font-weight!!property' to ''753'', and 'font-stretch!!property' to ''condensed''.
 	Note that the ''25deg'' in this rule must be immediately following the "oblique" keyword.
 </div>
 
-Since the 'font-stretch' property was not defined in CSS 2.1,
-when using 'font-stretch' values within 'font' rules,
+Since the 'font-stretch!!property' property was not defined in CSS 2.1,
+when using 'font-stretch!!property' values within 'font' rules,
 authors should include a extra version compatible with older user agents:
 
 <pre>
@@ -1047,10 +1051,10 @@ should be set to their initial values.
 
 That is why this property is "almost" a shorthand property: system
 fonts can only be specified with this property, not with
-'font-family' itself, so 'font'
+'font-family!!property' itself, so 'font!!property'
 allows authors to do more than the
 sum of its subproperties. However, the individual properties such as
-'font-weight' are still given values
+'font-weight!!property' are still given values
 taken from the system font, which can be independently varied.
 
 Note that the keywords used for the system fonts listed above are
@@ -1078,7 +1082,7 @@ name:
 
 	<pre>button p { font: 600 9pt Charcoal }</pre>
 
-	Because the 'font' shorthand resets to its initial value
+	Because the 'font!!property' shorthand resets to its initial value
 	any property not explicitly given a value, this has the same effect as
 	this declaration:
 
@@ -2321,7 +2325,7 @@ if all font style properties were set to their initial value.
 <ol id="fontmatchingalg">
 	1. Using the computed font property values for a given element,
 		the user agent starts with the first family name
-		specified by the 'font-family' property.
+		specified by the 'font-family!!property' property.
 
 	2. If the family name is a generic family keyword, the user agent
 		looks up the appropriate font family name to be used.  User
@@ -2620,7 +2624,7 @@ used for example in the definition of <a>font-relative lengths</a> such as ''ex'
 or in the definition of the 'line-height' property
 is defined to be the first available font
 that would match the U+0020 (space) character
-given font families in the 'font-family' list
+given font families in the 'font-family!!property' list
 (or a user agent's default font if none are available).
 
 <h3 id="cluster-matching">
@@ -3329,7 +3333,7 @@ Initial: N/A
 This descriptor defines the font family name that this palette applies to.
 This palette will only ever be applied to the font with this name.
 The value of this descriptor matches the definition of the <<family-name>>
-for the 'font-family' property.
+for the 'font-family!!property' property.
 This means that only named font families are allowed
 and rules that including generic or installed fonts in the list of font families
 are syntax errors.