[css-writing-modes] Fix links to CSS2.1.

Author: fantasai

css-writing-modes/Overview.bs

@@ -144,12 +144,12 @@ Introduction to Writing Modes</h2>
 Module Interactions</h3>
 
   <p>This module replaces and extends the 'unicode-bidi' and 'direction'
-  features defined in [[!CSS21]] sections 8.6 and 9.10.
+  features defined in [[!CSS2]] sections 8.6 and 9.10.
 
 <h3 id="values">
 Value Types and Terminology</h3>
 
-  This specification follows the <a href="https://www.w3.org/TR/CSS21/about.html#property-defs">CSS property definition conventions</a> from [[!CSS2]].
+  This specification follows the <a href="https://www.w3.org/TR/CSS2/about.html#property-defs">CSS property definition conventions</a> from [[!CSS2]].
   Value types not defined in this specification are defined in CSS Values & Units [[!CSS-VALUES-3]].
   Other CSS modules may expand the definitions of these value types.
 
@@ -159,7 +159,7 @@ Value Types and Terminology</h3>
   For readability they have not been repeated explicitly.
 
   <p>Other important terminology and concepts used in this specification
-  are defined in [[!CSS21]] and [[!CSS-TEXT-3]].
+  are defined in [[!CSS2]] and [[!CSS-TEXT-3]].
 
 <span id="bidi"></span>
 <h2 id="text-direction">
@@ -228,8 +228,8 @@ Specifying Directionality: the 'direction' property</h3>
     of any bidi paragraph, embedding, isolate, or override established by the box.
     (See 'unicode-bidi'.) <!-- except plaintext -->
     In addition, it informs the ordering of
-    <a href="https://www.w3.org/TR/CSS21/tables.html">table</a> column layout,
-    the direction of horizontal <a href="https://www.w3.org/TR/CSS21/visufx.html#overflow">overflow</a>,
+    <a href="https://www.w3.org/TR/CSS2/tables.html">table</a> column layout,
+    the direction of horizontal <a href="https://www.w3.org/TR/CSS2/visufx.html#overflow">overflow</a>,
     and the default alignment of text within a line, and other layout effects
     that depend on the box's inline base direction.</p>
 
@@ -1058,7 +1058,7 @@ Text Baselines</h3>
 <h3 id="replaced-baselines">
 Atomic Inline Baselines</h3>
 
-  <p>If an <a href="https://www.w3.org/TR/CSS21/visuren.html#inline-boxes">atomic
+  <p>If an <a href="https://www.w3.org/TR/CSS2/visuren.html#inline-boxes">atomic
     inline</a> (such as an inline-block, inline-table, or replaced inline element)
     does not have a baseline,
     then the UA synthesizes a baseline table thus:
@@ -1071,7 +1071,7 @@ Atomic Inline Baselines</h3>
     <i>under</i> and <i>over</i> margin edges of the box.
   </dl>
 
-  <p class="note">The 'vertical-align' property in [[!CSS21]] defines the baseline of
+  <p class="note">The 'vertical-align' property in [[!CSS2]] defines the baseline of
     inline-table and inline-block boxes with some exceptions.
 
 <h3 id="baseline-alignment">
@@ -1453,7 +1453,7 @@ Obsolete: the SVG1.1 'glyph-orientation-vertical' property</h4>
 <h2 id="abstract-box">
 Abstract Box Terminology</h2>
 
-  <p>CSS2.1 [[!CSS21]] defines the box layout model of CSS in detail,
+  <p>CSS2.1 [[!CSS2]] defines the box layout model of CSS in detail,
     but only for the ''horizontal-tb'' writing mode. Layout is analogous
     in writing modes other than ''horizontal-tb''; however directional
     and dimensional terms in CSS2.1 must be abstracted and remapped
@@ -1892,10 +1892,10 @@ Dimensional Mapping</h3>
   <ul>
     <li>The ''repeat-x'' keyword of 'background-repeat' tiles in the
       inline dimension of the element, which is not necessarily the
-      horizontal dimension. [[!CSS21]] [[!CSS3BG]]
+      horizontal dimension. [[!CSS2]] [[!CSS3BG]]
     <li>The ''repeat-y'' keyword of 'background-repeat' tiles in the
       block flow dimension of the element, which is not necessarily
-      the vertical dimension. [[!CSS21]] [[!CSS3BG]]
+      the vertical dimension. [[!CSS2]] [[!CSS3BG]]
     <li>The 'overflow-x' property controls overflow in the inline
       dimension of the element. [[!CSS3UI]]
     <li>The 'overflow-y' property controls overflow in the block
@@ -1908,9 +1908,9 @@ Dimensional Mapping</h3>
     <li>The first and second values of the 'border-spacing' property
       represent spacing between columns and rows respectively, not
       necessarily the horizontal and vertical spacing respectively.
-      [[!CSS21]]
+      [[!CSS2]]
     <li>The 'line-height' property always refers to the logical
-      height. [[!CSS21]]
+      height. [[!CSS2]]
   </ul>
 
   <p>The height properties ('height', 'min-height', and 'max-height')
@@ -1919,15 +1919,15 @@ Dimensional Mapping</h3>
     the rules used to calculate box dimensions and positions are logical.
 
   <p>For example, the calculation rules in
-    <a href="https://www.w3.org/TR/CSS21/visudet.html#Computing_widths_and_margins">CSS2.1 Section 10.3</a>
+    <a href="https://www.w3.org/TR/CSS2/visudet.html#Computing_widths_and_margins">CSS2.1 Section 10.3</a>
     are used for the inline dimension measurements:
     they apply to the <i>inline size</i> (which could be either the physical width or physical height)
     and to the <i>inline-start</i> and <i>inline-end</i> margins, padding, and border.
     Likewise the calculation rules in
-        <a href="https://www.w3.org/TR/CSS21/visudet.html#Computing_heights_and_margins">CSS2.1 Section 10.6</a>
+        <a href="https://www.w3.org/TR/CSS2/visudet.html#Computing_heights_and_margins">CSS2.1 Section 10.6</a>
     are used in the block dimension:
     they apply to the <i>block size</i>
-    and to the <i>block-start</i> and <i>block-end</i> margins, padding, and border. [[!CSS21]]
+    and to the <i>block-start</i> and <i>block-end</i> margins, padding, and border. [[!CSS2]]
 
   <p>As a corollary, percentages on the margin and padding properties,
     which are always calculated with respect to the containing block
@@ -2031,7 +2031,7 @@ Available Space in Orthogonal Flows</h4>
     This typically happens in CSS2.1
     when a containing block has an ''height/auto'' height,
     for example: its width is given by the calculations in
-    <a href="https://www.w3.org/TR/CSS21/visudet.html#blockwidth">10.3.3</a>,
+    <a href="https://www.w3.org/TR/CSS2/visudet.html#blockwidth">10.3.3</a>,
     but its <i>block size</i> depends on its contents.
     In such cases the <i>available inline space</i> is defined
     as the <i>inline size</i> of the containing block;
@@ -2221,11 +2221,11 @@ Flow-Relative Mappings</h3>
 
   <p>For example, the margin that is dropped when a box's inline
     dimension is
-    <a href="https://www.w3.org/TR/CSS21/visudet.html#blockwidth">over-constrained</a>
+    <a href="https://www.w3.org/TR/CSS2/visudet.html#blockwidth">over-constrained</a>
     is the end margin as determined by the writing mode of the
     containing block.
 
-  <p>The <a href="https://www.w3.org/TR/CSS21/box.html#collapsing-margins">margin
+  <p>The <a href="https://www.w3.org/TR/CSS2/box.html#collapsing-margins">margin
     collapsing rules</a> apply exactly with the <em><i>block-start</i>
     margin</em> substituted for the top margin and the
     <em><i>block-end</i> margin</em> substituted for the bottom margin.
@@ -2265,17 +2265,17 @@ Line-Relative Mappings</h3>
     to interpret the <css>left</css> and <css>right</css> values of the
     following properties:
   <ul>
-    <li>the 'text-align' property [[!CSS21]]
+    <li>the 'text-align' property [[!CSS2]]
   </ul>
 
   <p>The <i>line-right</i> and <i>line-left</i> directions are calculated
     with respect to the writing mode of the <em>containing
     block</em> of the box and used to interpret the <css>left</css>
     and <css>right</css> values of the following properties:
   <ul>
-    <li>the 'float' property [[!CSS21]]
-    <li>the 'clear' property [[!CSS21]]
-    <li>the 'caption-side' property [[!CSS21]]
+    <li>the 'float' property [[!CSS2]]
+    <li>the 'clear' property [[!CSS2]]
+    <li>the 'caption-side' property [[!CSS2]]
   </ul>
 
   <p>The <i>over</i> and <i>under</i> directions are calculated with respect to
@@ -2288,10 +2288,10 @@ Line-Relative Mappings</h3>
       the "top" of the line box is its <i>over</i> edge;
       the "bottom" of the line box is its under edge.
       Positive length and percentage values
-      shift the baseline towards the <i>line-over</i> edge. [[!CSS21]]
+      shift the baseline towards the <i>line-over</i> edge. [[!CSS2]]
     <li>For the 'text-decoration' property,
       the underline is drawn on the <i>under</i> side of the text;
-      the overline is drawn on the <i>over</i> side of the text. [[!CSS21]]
+      the overline is drawn on the <i>over</i> side of the text. [[!CSS2]]
       <span class="note">Note that the CSS Text Decoration Module defines
       this in more detail and provides additional controls for
       controlling the position of underlines and overlines.
@@ -2305,8 +2305,8 @@ Purely Physical Mappings</h3>
     and do not respond to changes in writing mode:
 
   <ul>
-    <li>the ''rect()'' notation of the 'clip' property [[!CSS21]]
-    <li>the background properties [[!CSS21]] [[!CSS3BG]]
+    <li>the ''rect()'' notation of the 'clip' property [[!CSS2]]
+    <li>the background properties [[!CSS2]] [[!CSS3BG]]
     <li>the border-image properties [[!CSS3BG]]
     <li>the offsets of the 'box-shadow' and 'text-shadow' properties
   </ul>