Update for w3c#10868

Author: andreubotella

css-overflow-4/Overview.bs

@@ -715,8 +715,6 @@ Indicating Block-Axis Overflow: the 'block-ellipsis' property</h3>
 	This property only affects a line box
 	if it immediately precedes eiher a [=region break=]
 	or a [=clamp point=] in the [=block formatting context=].
-	If the [=clamp point=] is placed at the end of the [=line-clamp container=],
-	then the line will not be affected.
 
 	Note: See [[css-overflow-4#fragmentation]] for a way to generate boxes with such a [=region break=].
 
@@ -853,7 +851,7 @@ Limiting Visible Lines: the 'line-clamp' shorthand property</h3>
 		<dd>
 
 			Issue(7708): Whether this should imply ''discard'' or ''collapse'' is an unresolved question.
-                        
+
 			Sets 'continue' to ''collapse''
 			if either or both values are specified,
 			unless the ''line-clamp/-webkit-legacy'' keyword is also specified.
@@ -979,10 +977,13 @@ Forcing a Break After a Set Number of Lines: the 'max-lines' property</h3>
 	    If fewer than <var>N</var> line boxes exist,
 	    then 'max-lines' introduces no <a>region break</a>.
 	- If the box is a [=line-clamp container=],
-	its [=clamp point=] is set after its <var>N</var>th
+	    its [=clamp point=] is set
+		to the first possible clamp point after
+		its <var>N</var>th
 	    descendant <a>in-flow</a> <a>line box</a>.
 	    If fewer than <var>N</var> line boxes exist,
-	    then the clamp point is set to the end of the line-clamp container.
+		or if there are no clamp points after it,
+	    then that line-clamp container has no clamp point.
 
 
 	Only line boxes in the same <a>Block Formatting Context</a>
@@ -1178,13 +1179,14 @@ Fragmentation of Overflow: the 'continue' property</h3>
 
 	A <dfn>line-clamp container</dfn> is an [=independent formatting context|independent=] [=block formatting context=]
 	that additionally follows the rules in this section.
-	All line-clamp containers contain a <dfn>clamp point</dfn>,
+	Line-clamp containers can have a <dfn>clamp point</dfn>,
 	which is one of the following positions inside it:
 
-	- A point immediately after a [=line box=]
-		in the line-clamp container's [=block formatting context=].
-	- The end of the line-clamp container,
-		if there are any boxes after the last [=inline formatting context=]
+	- The start of the [=line-clamp container=].
+	- A point between two consecutive [=line boxes=]
+		in an [=inline formatting context=]
+		contained by the line-clamp container's [=block formatting context=].
+	- A point between two [=in-flow=] [=block-level=] sibling boxes
 		in the line-clamp container's [=block formatting context=].
 
 	If the [=line-clamp container=]'s [=block formatting context root=]
@@ -1195,9 +1197,9 @@ Fragmentation of Overflow: the 'continue' property</h3>
 	the line-clamp container's [=automatic block size=]
 	(as determined below)
 	is not greater than the [=block size=] the box would have
-	if its automatic block size were infinite;
-	or if that is not the case for any possible clamp points,
-	to the first possible clamp point in the block formatting context.
+	if its automatic block size were infinite.
+	If the [=block size=] would be infinite,
+	then there is no clamp point.
 
 	Within a [=line-clamp container=],
 	the following boxes and line boxes will be invisible