[css-flexbox] Reword first-letter/line to match Selectors3 wording.

Author: tabatkins

css-flexbox/Overview.bs

@@ -24,7 +24,7 @@ Former Editor: Neil Deakin, Mozilla Corporation, enndeakin@gmail.com
 Former Editor: Ian Hickson, formerly of Opera Software, ian@hixie.ch
 Former Editor: David Hyatt, formerly of Netscape Corporation, hyatt@apple.com
 !Issues List: http://dev.w3.org/csswg/css-flexbox-1/issues-cr-2012
-Ignored Terms: column-*, auto
+Ignored Terms: column-*, auto, first formatted line, first letter
 Link Defaults:  css21 (property) margin/min-width/min-height/max-width/max-height, css-break-3 (property) break-after
 </pre>
 <style>
@@ -533,9 +533,9 @@ Flex Containers: the ''flex'' and ''inline-flex'' 'display' values</h2>
 			'vertical-align' has no effect on a flex item.
 
 		<li>
-			the ''::first-line'' and ''::first-letter'' pseudo-elements do not apply to <i>flex containers</i>.
-			<a>flex containers</a> never generate ''::first-line'' or ''::first-letter'' pseudo-elements,
-			and do not participate in those pseudo-elements generated by their ancestors.
+			the ''::first-line'' and ''::first-letter'' pseudo-elements do not apply to <a>flex containers</a>,
+			and <a>flex containers</a> do not contribute a <a>first formatted line</a> or <a>first letter</a>
+			to their ancestors.
 
 			Issue: When the Pseudo-Elements spec exists,
 			align this language with whatever algo we define for figuring out where to search for first-line/letter content.

css-flexbox/Overview.html

@@ -707,9 +707,9 @@ <h2 class="heading settled" data-level=3 id=flex-containers><span class=secno>3
 			<a class=property data-link-type=propdesc href=http://dev.w3.org/csswg/css2/visudet.html#propdef-vertical-align title=vertical-align>vertical-align</a> has no effect on a flex item.
 
 		<li>
-			the <span class=css>::first-line</span> and <span class=css>::first-letter</span> pseudo-elements do not apply to <a data-link-type=dfn href=#flex-container title="flex containers">flex containers</a>.
-			<a data-link-type=dfn href=#flex-container title="flex containers">flex containers</a> never generate <span class=css>::first-line</span> or <span class=css>::first-letter</span> pseudo-elements,
-			and do not participate in those pseudo-elements generated by their ancestors.
+			the <span class=css>::first-line</span> and <span class=css>::first-letter</span> pseudo-elements do not apply to <a data-link-type=dfn href=#flex-container title="flex containers">flex containers</a>,
+			and <a data-link-type=dfn href=#flex-container title="flex containers">flex containers</a> do not contribute a <a data-link-type=dfn title="first formatted line">first formatted line</a> or <a data-link-type=dfn title="first letter">first letter</a>
+			to their ancestors.
 
 <p class=issue id=issue-e8d79531><a class=self-link href=#issue-e8d79531></a>When the Pseudo-Elements spec exists,
 			align this language with whatever algo we define for figuring out where to search for first-line/letter content.</p>