[css-sizing-4][css-grid-2] Rename ar unit to tr. #3225

Author: fantasai

css-grid-2/Overview.bs

@@ -693,14 +693,14 @@ Aspect-ratio&ndash;controlled Gutters</h2>
 
 	<pre class="propdef">
 	Name: align-content, justify-content
-	New values: [ <<aspect-ratio>> <<content-distribution>>? ]
+	New values: [ <<transfer-ratio>> <<content-distribution>>? ]
 	</pre>
 
 
 	<dl dfn-for="align-content,justify-content" dfn-type=value>
-		<dt><dfn>&lt;aspect-ratio></dfn>
+		<dt><dfn>&lt;transfer-ratio></dfn>
 		<dd>
-			A <a spec="css-values">dimension</a> with the unit ''ar'',
+			A <a spec="css-values">dimension</a> with the unit ''tr'',
 			representing a multiplier against the analogous quantity
 			in the other dimension.
 			If that quantity cannot be determined
@@ -711,7 +711,7 @@ Aspect-ratio&ndash;controlled Gutters</h2>
 			even when there is no free space left,
 			causing overflow.
 
-			Specifically, an 'align-content' value of ''1ar'' represents
+			Specifically, an 'align-content' value of ''1tr'' represents
 			the amount of space (which may be zero) allocated between two adjacent
 			<a>alignment subjects</a> (<a>grid tracks</a> / <a>flex lines</a> / <a spec="css-multicol">column boxes</a>)
 			by the 'justify-content' property.
@@ -720,7 +720,7 @@ Aspect-ratio&ndash;controlled Gutters</h2>
 			as for 'justify-content'.
 			The behavior of <<number>> values for 'justify-content' is analogous.
 
-			Note: The space allocated by ''align-content: 1ar'' will be zero
+			Note: The space allocated by ''align-content: 1tr'' will be zero
 			if 'justify-content' does not allocate space
 			between adjacent <a>alignment subjects</a>:
 			either due to not having a <<content-distribution>> value
@@ -750,7 +750,7 @@ Aspect-ratio&ndash;controlled Gutters</h2>
 				grid-template-columns: repeat(auto-fill, 15em);
 				gap: 1em;
 				justify-content: space-evenly;
-				align-content: 1ar space-between;
+				align-content: 1tr space-between;
 			}
 		</pre>
 
@@ -762,14 +762,23 @@ Aspect-ratio&ndash;controlled Gutters</h2>
 				grid-template-columns: repeat(auto-fill, 15em);
 				gap: 1em 1.618em;
 				justify-content: space-evenly;
-				align-content: 0.618ar space-between;
+				align-content: 0.618tr space-between;
 			}
 		</pre>
 	</div>
 
 <h2 id="changes">
 Changes</h2>
 
+	<h3 class="no-num" id="changes-20180904">
+	Changes since the
+	<a href="https://www.w3.org/TR/2018/WD-css-grid-2-20180804/">August 2018
+	CSS Grid Layout Level 2 Working Draft</a></h3>
+
+	<ul>
+		<li>Renamed ''ar'' unit to ''tr''.
+	</ul>
+
 	<h3 class="no-num" id="changes-20180628">
 	Changes since the
 	<a href="https://www.w3.org/TR/2018/WD-css-grid-2-20180628/">June 2018

css-sizing-4/Overview.bs

@@ -200,19 +200,19 @@ Aspect Ratio Limits Option A: the ''from-ratio''</h3>
 	</div>
 
 <h3 id="ar-width-height">
-Aspect Ratio Limits Option B: the ''ar'' unit</h3>
+Aspect Ratio Limits Option B: the ''tr'' unit</h3>
 
 	<pre class="partial propdef">
 	Name: min-width, min-height, max-width, max-height
-	New Values: <<aspect-ratio>>
-	Computed value: ''ar'' dimension value
+	New Values: <<transfer-ratio>>
+	Computed value: ''tr'' dimension value
 	</pre>
 
-	The <dfn type=value for="min-width, min-height, max-width, max-height"><<aspect-ratio>></dfn> value,
-	which is a <a>dimension</a> with the unit ''ar'',
+	The <dfn type=value for="min-width, min-height, max-width, max-height"><<transfer-ratio>></dfn> value,
+	which is a <a>dimension</a> with the unit ''tr'',
 	specifies that the used value of the property
 	is calculated from the used size of the opposite dimension
-	multiplied by the ''ar'' value.
+	multiplied by the ''tr'' value.
 
 	ISSUE: Define a table of all the ways this creates conflicts and cycles and break them.
 
@@ -224,7 +224,7 @@ Aspect Ratio Limits Option B: the ''ar'' unit</h3>
 
 		<pre>
 		  div {
-		    min-height: 1ar;
+		    min-height: 1tr;
 		  }
 		</pre>