[css-multicol] Don't export the break-* properties, as Break is the one that defines them.

Author: tabatkins

css-multicol/Overview.bs

@@ -910,38 +910,40 @@ Column breaks</h2>
 <h3 id="break-before-break-after-break-inside">
 'break-before', 'break-after', 'break-inside'</h3>
 
-	<pre class="propdef">
-	Name: break-before
-	Value: auto | always | avoid | left | right | page | column | avoid-page | avoid-column
-	Initial: auto
-	Applies to: block-level elements
-	Inherited: no
-	Percentages: N/A
-	Media: visual
-	Computed value: specified value
-	</pre>
+	<div noexport>
+		<pre class="propdef">
+		Name: break-before
+		Value: auto | always | avoid | left | right | page | column | avoid-page | avoid-column
+		Initial: auto
+		Applies to: block-level elements
+		Inherited: no
+		Percentages: N/A
+		Media: visual
+		Computed value: specified value
+		</pre>
 
-	<pre class="propdef">
-	Name: break-after
-	Value: auto | always | avoid | left | right | page | column | avoid-page | avoid-column
-	Initial: auto
-	Applies to: block-level elements
-	Inherited: no
-	Percentages: N/A
-	Media: visual
-	Computed value: specified value
-	</pre>
+		<pre class="propdef">
+		Name: break-after
+		Value: auto | always | avoid | left | right | page | column | avoid-page | avoid-column
+		Initial: auto
+		Applies to: block-level elements
+		Inherited: no
+		Percentages: N/A
+		Media: visual
+		Computed value: specified value
+		</pre>
 
-	<pre class="propdef">
-	Name: break-inside
-	Value: auto | avoid | avoid-page | avoid-column
-	Initial: auto
-	Applies to: block-level elements
-	Inherited: no
-	Percentages: N/A
-	Media: visual
-	Computed value: specified value
-	</pre>
+		<pre class="propdef">
+		Name: break-inside
+		Value: auto | avoid | avoid-page | avoid-column
+		Initial: auto
+		Applies to: block-level elements
+		Inherited: no
+		Percentages: N/A
+		Media: visual
+		Computed value: specified value
+		</pre>
+	</div>
 
 	These properties describe page/column break behavior before/after/inside the generated box. These values are normatively defined in [[!CSS21]]: