[css-cascade] Define 'property' as a term. #5633

css-cascade-4/Overview.bs

@@ -43,6 +43,20 @@ spec:css-fonts-4
 <h2 id="intro">
 Introduction</h2>
 
+	CSS defines a finite set of parameters,
+	called <dfn export for=CSS lt="property">properties</dfn>,
+	that direct the rendering of a document.
+	Each [=property=] has a name
+	(e.g., 'color', 'font-size', or 'border-style'),
+	a value space
+	(e.g., <<color>>, <<length-percentage>>, ''[ solid | dashed | dotted | &hellip; ]''),
+	and a defined behavior on the rendering of the document.
+	Properties values are assigned to various parts of the document
+	via [=property declarations=],
+	which assign the property a value
+	(e.g. ''red'', ''12pt'', ''dotted'')
+	for the associated element or box.
+
 	One of the fundamental design principles of CSS is <a lt="cascade">cascading</a>,
 	which allows several style sheets to influence the presentation of a document.
 	When different declarations try to set a value for the same element/property combination,

css-cascade-5/Overview.bs

@@ -36,6 +36,20 @@ spec:css-fonts-4
 <h2 id="intro">
 Introduction</h2>
 
+	CSS defines a finite set of parameters,
+	called <dfn export for=CSS lt="property">properties</dfn>,
+	that direct the rendering of a document.
+	Each [=property=] has a name
+	(e.g., 'color', 'font-size', or 'border-style'),
+	a value space
+	(e.g., <<color>>, <<length-percentage>>, ''[ solid | dashed | dotted | &hellip; ]''),
+	and a defined behavior on the rendering of the document.
+	Properties values are assigned to various parts of the document
+	via [=property declarations=],
+	which assign the property a value
+	(e.g. ''red'', ''12pt'', ''dotted'')
+	for the associated element or box.
+
 	One of the fundamental design principles of CSS is <a lt="cascade">cascading</a>,
 	which allows several style sheets to influence the presentation of a document.
 	When different declarations try to set a value for the same element/property combination,