[css-writing-modes] Clarifications and issue about need for clarification...

Author: fantasai

css-writing-modes/Overview.bs

@@ -1967,7 +1967,7 @@ Orthogonal Flows</h3>
   </div>
 
 <h4 id="orthogonal-auto">
-Auto-sizing in Orthogonal Flows</h4>
+Available Sizes in Orthogonal Flows</h4>
 
   <p>It is common in CSS for a containing block to have a definite <i>inline size</i>,
     but not a definite <i>block size</i>.
@@ -1983,21 +1983,24 @@ Auto-sizing in Orthogonal Flows</h4>
     is infinite.
 
   <p>Putting a box in an <i>orthogonal flow</i> allows the opposite to happen:
-    for the <i>available block size</i> to be defined,
+    for the <i>available block size</i> to be definite,
     but the <i>available inline size</i> to be indefinite.
     In such cases a percentage of the containing block’s <i>inline size</i> cannot be defined,
     and <i>inline axis</i> computations cannot be resolved.
     In these cases, the initial containing block's size is used
     as a <i>fallback</i> variable in place of the <i>available inline size</i>
     for calculations that require a definite <i>available inline size</i>.
 
+  <p class="issue">What is this section trying to say? I can't remember. :(
+
   <p>See [[!CSS3-SIZING]] for further details on CSS sizing terminology and concepts.
 
 <h4 id=auto-multicol>
 Auto-sizing Block Containers in Orthogonal Flows</h4>
 
   <p>
-    If a box establishing an <i>orthogonal flow</i> is a block container or multi-column element,
+    If a box establishing an <i>orthogonal flow</i> is
+    either a block container or a multi-column element,
     for the case where the box's <i>inline size</i> is ''width/auto'':
 
   <ol>
@@ -2027,7 +2030,7 @@ Auto-sizing Block Containers in Orthogonal Flows</h4>
           <img src="auto-multicol.svg" width=200
             alt="Diagram of automatically triggered multi-column preventing T-shaped documents">
         </div>
-        Note that this automatically triggers multi-column flow on all block containers.
+        <strong>Note that this requirement automatically triggers multi-column flow on all block containers.</strong>
         This is so that overflowing content, instead of continuing off the side of the containing block,
         is wrapped into columns in the flow direction of the containing block,
         thus avoiding T-shaped documents.