[css-values] Tweak some headers

Author: fantasai

css-values/Overview.bs

@@ -443,7 +443,7 @@ Integers: the <<integer>> type</h3>
 	to indicate the integer's sign.
 
 <h3 id="numbers">
-Numbers: the <<number>> type</h3>
+Real Numbers: the <<number>> type</h3>
 
 	Number values are denoted by <dfn id="number-value">&lt;number></dfn>.
 	A <dfn>number</dfn> is either an <<integer>>
@@ -472,11 +472,19 @@ Percentages: the <<percentage>> type</h3>
 <h3 id='dimensions'>
 Numbers with Units: <i>dimensions</i></h3>
 
+
 	A <dfn>dimension</dfn> is a <<number>>
 	immediately followed by a unit identifier.
 	It corresponds to the <<dimension-token>> production in the Syntax spec.
 	Like keywords, unit identifiers are <a>ASCII case-insensitive</a>.
 
+	<p>CSS uses <i>dimensions</i> to specify
+	distances (<var>&lt;length></var>),
+	durations (<var>&lt;time></var>),
+	frequencies (<var>&lt;frequency></var>),
+	resolutions (<var>&lt;resolution></var>),
+	and other quantities.
+
 <h2 id="lengths">
 Distance Units: the <<length>> type</h2>
 
@@ -743,10 +751,10 @@ Absolute lengths: the ''cm'', ''mm'', ''in'', ''pt'', ''pc'', ''px'' units</h3>
 	</figure>
 
 <h2 id="other-units">
-Other Units</h2>
+Other Quantities</h2>
 
 <h3 id="angles">
-Angles: the <<angle>> type and ''deg'', ''grad'', ''rad'', ''turn'' units</h3>
+Angle Units: the <<angle>> type and ''deg'', ''grad'', ''rad'', ''turn'' units</h3>
 
 	Angle values are <i>dimensions</i> denoted by <dfn id="angle-value">&lt;angle></dfn>.
 	The angle unit identifiers are:
@@ -774,7 +782,7 @@ Angles: the <<angle>> type and ''deg'', ''grad'', ''rad'', ''turn'' units</h3>
 	approximately ''1.57rad''.
 
 <h3 id="time">
-Times: the <<time>> type and ''s'', ''ms'' units</h3>
+Duration Units: the <<time>> type and ''s'', ''ms'' units</h3>
 
 	Time values are <i>dimensions</i> denoted by <dfn id="time-value">&lt;time></dfn>.
 	The time unit identifiers are:
@@ -791,7 +799,7 @@ Times: the <<time>> type and ''s'', ''ms'' units</h3>
 	the declaration is invalid and must be <a href="http://www.w3.org/TR/CSS21/conform.html#ignore">ignored</a>.
 
 <h3 id="frequency">
-Frequencies: the <<frequency>> type and ''Hz'', ''kHz'' units</h3>
+Frequency Units: the <<frequency>> type and ''Hz'', ''kHz'' units</h3>
 
 	Frequency values are <i>dimensions</i> denoted by <dfn id="frequency-value">&lt;frequency></dfn>.
 	The frequency unit identifiers are:
@@ -807,7 +815,7 @@ Frequencies: the <<frequency>> type and ''Hz'', ''kHz'' units</h3>
 	is a bass sound, and 6kHz (or 6khz) is a treble sound.
 
 <h3 id="resolution">
-Resolutions: the <<resolution>> type and ''dpi'', ''dpcm'', ''dppx'' units</h3>
+Resolution Units: the <<resolution>> type and ''dpi'', ''dpcm'', ''dppx'' units</h3>
 
 	Resolution units are <i>dimensions</i> denoted by <dfn id="resolution-value">&lt;resolution></dfn>.
 	The resolution unit identifiers are:

css-values/Overview.html

@@ -139,7 +139,7 @@ <h2 class="no-num no-toc no-ref heading settled heading" id=contents><span class
 	<li><a href=#numeric-types><span class=secno>4</span> Numeric Data Types</a>
 		<ul class=toc>
 		<li><a href=#integers><span class=secno>4.1</span> Integers: the <span class=production data-link-type=type title="<integer>">&lt;integer&gt;</span> type</a>
-		<li><a href=#numbers><span class=secno>4.2</span> Numbers: the <span class=production data-link-type=type title="<number>">&lt;number&gt;</span> type</a>
+		<li><a href=#numbers><span class=secno>4.2</span> Real Numbers: the <span class=production data-link-type=type title="<number>">&lt;number&gt;</span> type</a>
 		<li><a href=#percentages><span class=secno>4.3</span> Percentages: the <span class=production data-link-type=type title="<percentage>">&lt;percentage&gt;</span> type</a>
 		<li><a href=#dimensions><span class=secno>4.4</span> Numbers with Units: <span data-link-type=dfn title=dimensions>dimensions</span></a></ul>
 	<li><a href=#lengths><span class=secno>5</span> Distance Units: the <span class=production data-link-type=type title="<length>">&lt;length&gt;</span> type</a>
@@ -149,12 +149,12 @@ <h2 class="no-num no-toc no-ref heading settled heading" id=contents><span class
 			<li><a href=#font-relative-lengths><span class=secno>5.1.1</span> Font-relative lengths: the <span class=css data-link-type=maybe title=em>em</span>, <span class=css data-link-type=maybe title=ex>ex</span>, <span class=css data-link-type=maybe title=ch>ch</span>, <span class=css data-link-type=maybe title=rem>rem</span> units</a>
 			<li><a href=#viewport-relative-lengths><span class=secno>5.1.2</span> Viewport-percentage lengths: the <span class=css data-link-type=maybe title=vw>vw</span>, <span class=css data-link-type=maybe title=vh>vh</span>, <span class=css data-link-type=maybe title=vmin>vmin</span>, <span class=css data-link-type=maybe title=vmax>vmax</span> units</a></ul>
 		<li><a href=#absolute-lengths><span class=secno>5.2</span> Absolute lengths: the <span class=css data-link-type=maybe title=cm>cm</span>, <span class=css data-link-type=maybe title=mm>mm</span>, <span class=css data-link-type=maybe title=in>in</span>, <span class=css data-link-type=maybe title=pt>pt</span>, <span class=css data-link-type=maybe title=pc>pc</span>, <span class=css data-link-type=maybe title=px>px</span> units</a></ul>
-	<li><a href=#other-units><span class=secno>6</span> Other Units</a>
+	<li><a href=#other-units><span class=secno>6</span> Other Quantities</a>
 		<ul class=toc>
-		<li><a href=#angles><span class=secno>6.1</span> Angles: the <span class=production data-link-type=type title="<angle>">&lt;angle&gt;</span> type and <span class=css data-link-type=maybe title=deg>deg</span>, <span class=css data-link-type=maybe title=grad>grad</span>, <span class=css data-link-type=maybe title=rad>rad</span>, <span class=css data-link-type=maybe title=turn>turn</span> units</a>
-		<li><a href=#time><span class=secno>6.2</span> Times: the <span class=production data-link-type=type title="<time>">&lt;time&gt;</span> type and <span class=css data-link-type=maybe title=s>s</span>, <span class=css data-link-type=maybe title=ms>ms</span> units</a>
-		<li><a href=#frequency><span class=secno>6.3</span> Frequencies: the <span class=production data-link-type=type title="<frequency>">&lt;frequency&gt;</span> type and <span class=css data-link-type=maybe title=hz>Hz</span>, <span class=css data-link-type=maybe title=khz>kHz</span> units</a>
-		<li><a href=#resolution><span class=secno>6.4</span> Resolutions: the <span class=production data-link-type=type title="<resolution>">&lt;resolution&gt;</span> type and <span class=css data-link-type=maybe title=dpi>dpi</span>, <span class=css data-link-type=maybe title=dpcm>dpcm</span>, <span class=css data-link-type=maybe title=dppx>dppx</span> units</a></ul>
+		<li><a href=#angles><span class=secno>6.1</span> Angle Units: the <span class=production data-link-type=type title="<angle>">&lt;angle&gt;</span> type and <span class=css data-link-type=maybe title=deg>deg</span>, <span class=css data-link-type=maybe title=grad>grad</span>, <span class=css data-link-type=maybe title=rad>rad</span>, <span class=css data-link-type=maybe title=turn>turn</span> units</a>
+		<li><a href=#time><span class=secno>6.2</span> Duration Units: the <span class=production data-link-type=type title="<time>">&lt;time&gt;</span> type and <span class=css data-link-type=maybe title=s>s</span>, <span class=css data-link-type=maybe title=ms>ms</span> units</a>
+		<li><a href=#frequency><span class=secno>6.3</span> Frequency Units: the <span class=production data-link-type=type title="<frequency>">&lt;frequency&gt;</span> type and <span class=css data-link-type=maybe title=hz>Hz</span>, <span class=css data-link-type=maybe title=khz>kHz</span> units</a>
+		<li><a href=#resolution><span class=secno>6.4</span> Resolution Units: the <span class=production data-link-type=type title="<resolution>">&lt;resolution&gt;</span> type and <span class=css data-link-type=maybe title=dpi>dpi</span>, <span class=css data-link-type=maybe title=dpcm>dpcm</span>, <span class=css data-link-type=maybe title=dppx>dppx</span> units</a></ul>
 	<li><a href=#defined-elsewhere><span class=secno>7</span> Data Types Defined Elsewhere</a>
 		<ul class=toc>
 		<li><a href=#colors><span class=secno>7.1</span> Colors: the <span class=production data-link-type=type title="<color>">&lt;color&gt;</span> type</a>
@@ -583,7 +583,7 @@ <h3 class="heading settled heading" data-level=4.1 id=integers><span class=secno
 	to indicate the integer’s sign.
 
 <h3 class="heading settled heading" data-level=4.2 id=numbers><span class=secno>4.2 </span><span class=content>
-Numbers: the <a class="production css-code" data-link-type=type href=#number-value title="<number>">&lt;number&gt;</a> type</span><a class=self-link href=#numbers></a></h3>
+Real Numbers: the <a class="production css-code" data-link-type=type href=#number-value title="<number>">&lt;number&gt;</a> type</span><a class=self-link href=#numbers></a></h3>
 
 <p>	Number values are denoted by <dfn class=css-code data-dfn-type=type data-export="" id=number-value>&lt;number&gt;<a class=self-link href=#number-value></a></dfn>.
 	A <dfn data-dfn-type=dfn data-noexport="" id=number>number<a class=self-link href=#number></a></dfn> is either an <a class="production css-code" data-link-type=type href=#integer-value title="<integer>">&lt;integer&gt;</a>
@@ -612,11 +612,19 @@ <h3 class="heading settled heading" data-level=4.3 id=percentages><span class=se
 <h3 class="heading settled heading" data-level=4.4 id=dimensions><span class=secno>4.4 </span><span class=content>
 Numbers with Units: <a data-link-type=dfn href=#dimension title=dimensions>dimensions</a></span><a class=self-link href=#dimensions></a></h3>
 
+
 <p>	A <dfn data-dfn-type=dfn data-noexport="" id=dimension>dimension<a class=self-link href=#dimension></a></dfn> is a <a class="production css-code" data-link-type=type href=#number-value title="<number>">&lt;number&gt;</a>
 	immediately followed by a unit identifier.
 	It corresponds to the <a class="production css-code" data-link-type=type href=http://dev.w3.org/csswg/css-syntax-3/#typedef-dimension-token title="<dimension-token>">&lt;dimension-token&gt;</a> production in the Syntax spec.
 	Like keywords, unit identifiers are <a data-link-type=dfn href=http://dev.w3.org/csswg/css-syntax-3/#ascii-case-insensitive title="ascii case-insensitive">ASCII case-insensitive</a>.
 
+	<p>CSS uses <a data-link-type=dfn href=#dimension title=dimensions>dimensions</a> to specify
+	distances (<var>&lt;length&gt;</var>),
+	durations (<var>&lt;time&gt;</var>),
+	frequencies (<var>&lt;frequency&gt;</var>),
+	resolutions (<var>&lt;resolution&gt;</var>),
+	and other quantities.
+
 <h2 class="heading settled heading" data-level=5 id=lengths><span class=secno>5 </span><span class=content>
 Distance Units: the <a class="production css-code" data-link-type=type href=#length-value title="<length>">&lt;length&gt;</a> type</span><a class=self-link href=#lengths></a></h2>
 
@@ -876,10 +884,10 @@ <h3 class="heading settled heading" data-level=5.2 id=absolute-lengths><span cla
 	</figure>
 
 <h2 class="heading settled heading" data-level=6 id=other-units><span class=secno>6 </span><span class=content>
-Other Units</span><a class=self-link href=#other-units></a></h2>
+Other Quantities</span><a class=self-link href=#other-units></a></h2>
 
 <h3 class="heading settled heading" data-level=6.1 id=angles><span class=secno>6.1 </span><span class=content>
-Angles: the <a class="production css-code" data-link-type=type href=#angle-value title="<angle>">&lt;angle&gt;</a> type and <a class=css data-link-type=maybe href=#deg title=deg>deg</a>, <a class=css data-link-type=maybe href=#grad title=grad>grad</a>, <a class=css data-link-type=maybe href=#rad title=rad>rad</a>, <a class=css data-link-type=maybe href=#turn title=turn>turn</a> units</span><a class=self-link href=#angles></a></h3>
+Angle Units: the <a class="production css-code" data-link-type=type href=#angle-value title="<angle>">&lt;angle&gt;</a> type and <a class=css data-link-type=maybe href=#deg title=deg>deg</a>, <a class=css data-link-type=maybe href=#grad title=grad>grad</a>, <a class=css data-link-type=maybe href=#rad title=rad>rad</a>, <a class=css data-link-type=maybe href=#turn title=turn>turn</a> units</span><a class=self-link href=#angles></a></h3>
 
 <p>	Angle values are <a data-link-type=dfn href=#dimension title=dimensions>dimensions</a> denoted by <dfn class=css-code data-dfn-type=type data-export="" id=angle-value>&lt;angle&gt;<a class=self-link href=#angle-value></a></dfn>.
 	The angle unit identifiers are:
@@ -907,7 +915,7 @@ <h3 class="heading settled heading" data-level=6.1 id=angles><span class=secno>6
 	approximately <span class=css data-link-type=maybe title=1.57rad>1.57rad</span>.
 
 <h3 class="heading settled heading" data-level=6.2 id=time><span class=secno>6.2 </span><span class=content>
-Times: the <a class="production css-code" data-link-type=type href=#time-value title="<time>">&lt;time&gt;</a> type and <a class=css data-link-type=maybe href=#s title=s>s</a>, <a class=css data-link-type=maybe href=#ms title=ms>ms</a> units</span><a class=self-link href=#time></a></h3>
+Duration Units: the <a class="production css-code" data-link-type=type href=#time-value title="<time>">&lt;time&gt;</a> type and <a class=css data-link-type=maybe href=#s title=s>s</a>, <a class=css data-link-type=maybe href=#ms title=ms>ms</a> units</span><a class=self-link href=#time></a></h3>
 
 <p>	Time values are <a data-link-type=dfn href=#dimension title=dimensions>dimensions</a> denoted by <dfn class=css-code data-dfn-type=type data-export="" id=time-value>&lt;time&gt;<a class=self-link href=#time-value></a></dfn>.
 	The time unit identifiers are:
@@ -924,7 +932,7 @@ <h3 class="heading settled heading" data-level=6.2 id=time><span class=secno>6.2
 	the declaration is invalid and must be <a href=http://www.w3.org/TR/CSS21/conform.html#ignore>ignored</a>.
 
 <h3 class="heading settled heading" data-level=6.3 id=frequency><span class=secno>6.3 </span><span class=content>
-Frequencies: the <a class="production css-code" data-link-type=type href=#frequency-value title="<frequency>">&lt;frequency&gt;</a> type and <a class=css data-link-type=maybe href=#hz title=hz>Hz</a>, <a class=css data-link-type=maybe href=#khz title=khz>kHz</a> units</span><a class=self-link href=#frequency></a></h3>
+Frequency Units: the <a class="production css-code" data-link-type=type href=#frequency-value title="<frequency>">&lt;frequency&gt;</a> type and <a class=css data-link-type=maybe href=#hz title=hz>Hz</a>, <a class=css data-link-type=maybe href=#khz title=khz>kHz</a> units</span><a class=self-link href=#frequency></a></h3>
 
 <p>	Frequency values are <a data-link-type=dfn href=#dimension title=dimensions>dimensions</a> denoted by <dfn class=css-code data-dfn-type=type data-export="" id=frequency-value>&lt;frequency&gt;<a class=self-link href=#frequency-value></a></dfn>.
 	The frequency unit identifiers are:
@@ -940,7 +948,7 @@ <h3 class="heading settled heading" data-level=6.3 id=frequency><span class=secn
 	is a bass sound, and 6kHz (or 6khz) is a treble sound.
 
 <h3 class="heading settled heading" data-level=6.4 id=resolution><span class=secno>6.4 </span><span class=content>
-Resolutions: the <a class="production css-code" data-link-type=type href=#resolution-value title="<resolution>">&lt;resolution&gt;</a> type and <a class=css data-link-type=maybe href=#dpi title=dpi>dpi</a>, <a class=css data-link-type=maybe href=#dpcm title=dpcm>dpcm</a>, <a class=css data-link-type=maybe href=#dppx title=dppx>dppx</a> units</span><a class=self-link href=#resolution></a></h3>
+Resolution Units: the <a class="production css-code" data-link-type=type href=#resolution-value title="<resolution>">&lt;resolution&gt;</a> type and <a class=css data-link-type=maybe href=#dpi title=dpi>dpi</a>, <a class=css data-link-type=maybe href=#dpcm title=dpcm>dpcm</a>, <a class=css data-link-type=maybe href=#dppx title=dppx>dppx</a> units</span><a class=self-link href=#resolution></a></h3>
 
 <p>	Resolution units are <a data-link-type=dfn href=#dimension title=dimensions>dimensions</a> denoted by <dfn class=css-code data-dfn-type=type data-export="" id=resolution-value>&lt;resolution&gt;<a class=self-link href=#resolution-value></a></dfn>.
 	The resolution unit identifiers are: