[css-counter-styles] Clarify the minimum maximum lengths to be in codepoints.

Author: tabatkins

css-counter-styles/Overview.bs

@@ -353,8 +353,8 @@ Repeating Symbols: the ''symbolic'' system</h4>
 	The ''symbolic'' system will produce representations with sizes that are linear in the magnitude of the counter value.
 	This can potentially be abused to generate excessively large representations
 	and consume undue amounts of the user's memory or even hang their browser.
-	User agents must support representations at least 20 characters long,
-	but they may choose to instead use the fallback style for representations that would be longer than 20 characters.
+	User agents must support representations at least 60 Unicode codepoints long,
+	but they may choose to instead use the fallback style for representations that would be longer than 60 codepoints.
 
 
 <h4 id="alphabetic-system">
@@ -557,8 +557,8 @@ Accumulating Numerals: the ''additive'' system</h4>
 
 	The ''additive'' system will produce representations with sizes that are linear in the magnitude of the counter value.
 	This can potentially be abused to generate excessively large representations and consume undue amounts of the user's memory or even hang their browser.
-	User agents must support representations at least 20 characters long,
-	but they may choose to instead use the fallback style for representations that would be longer than 20 characters.
+	User agents must support representations at least 60 Unicode codepoints long,
+	but they may choose to instead use the fallback style for representations that would be longer than 60 codepoints.
 
 	Note: All of the predefined additive ''@counter-style'' rules in this specification
 	produce representations for every value in their range,

css-counter-styles/Overview.html

@@ -486,8 +486,8 @@ <h4 class="heading settled heading" data-level=3.1.3 id=symbolic-system><span cl
 <p>	The <a class=css data-link-type=maybe href=#valuedef-symbolic title=symbolic>symbolic</a> system will produce representations with sizes that are linear in the magnitude of the counter value.
 	This can potentially be abused to generate excessively large representations
 	and consume undue amounts of the user’s memory or even hang their browser.
-	User agents must support representations at least 20 characters long,
-	but they may choose to instead use the fallback style for representations that would be longer than 20 characters.
+	User agents must support representations at least 60 Unicode codepoints long,
+	but they may choose to instead use the fallback style for representations that would be longer than 60 codepoints.
 
 
 <h4 class="heading settled heading" data-level=3.1.4 id=alphabetic-system><span class=secno>3.1.4 </span><span class=content>
@@ -680,8 +680,8 @@ <h4 class="heading settled heading" data-level=3.1.6 id=additive-system><span cl
 
 <p>	The <a class=css data-link-type=maybe href=#valuedef-additive title=additive>additive</a> system will produce representations with sizes that are linear in the magnitude of the counter value.
 	This can potentially be abused to generate excessively large representations and consume undue amounts of the user’s memory or even hang their browser.
-	User agents must support representations at least 20 characters long,
-	but they may choose to instead use the fallback style for representations that would be longer than 20 characters.
+	User agents must support representations at least 60 Unicode codepoints long,
+	but they may choose to instead use the fallback style for representations that would be longer than 60 codepoints.
 
 <p class=note>	Note: All of the predefined additive <a class=css data-link-type=maybe href=#at-ruledef-counter-style title=@counter-style>@counter-style</a> rules in this specification
 	produce representations for every value in their range,