[css-images-4][editorial] Fix indentation

Author: fantasai

css-images-4/Overview.bs

@@ -120,29 +120,30 @@ Value Definitions {#values}
 Image File Formats {#image-file-formats}
 ----------------------------------------
 
-At minimum, the UA must support the following image file formats
-when referenced from an <<image>> value,
-for all the properties in which using <<image>> is valid:
-<ul>
-	<li>PNG, as specified in [[!PNG]]
-	<li>SVG, as specified in [[!SVG11]],
-	using the <a href="https://www.w3.org/TR/svg-integration/#secure-static-mode">secure static mode</a> (See [[!SVG-INTEGRATION]])
-	<li>If the UA supports animated <<image>>s,
-	SVG, as specified in [[!SVG11]],
-	using the <a href="https://www.w3.org/TR/svg-integration/#secure-animated-mode">secure animated mode</a> (See [[!SVG-INTEGRATION]])
-</ul>
-
-The UA may support other file formats as well.
+	At minimum, the UA must support the following image file formats
+	when referenced from an <<image>> value,
+	for all the properties in which using <<image>> is valid:
+	<ul>
+		<li>PNG, as specified in [[!PNG]]
+		<li>SVG, as specified in [[!SVG11]],
+		using the <a href="https://www.w3.org/TR/svg-integration/#secure-static-mode">secure static mode</a> (See [[!SVG-INTEGRATION]])
+		<li>If the UA supports animated <<image>>s,
+		SVG, as specified in [[!SVG11]],
+		using the <a href="https://www.w3.org/TR/svg-integration/#secure-animated-mode">secure animated mode</a> (See [[!SVG-INTEGRATION]])
+	</ul>
+
+	The UA may support other file formats as well.
 
 Image References: the ''url()'' notation {#url-notation}
-------------------------------------------------------------------------------------------
+--------------------------------------------------------
 
-Note: No change from [[css3-images]].
+	Note: No change from [[css3-images]].
 
 
 Fetching External Images {#fetching-images}
-------------------------------------------------------------------------------------------
-To <dfn>fetch an external image for a stylesheet</dfn>,
+-------------------------------------------
+
+	To <dfn>fetch an external image for a stylesheet</dfn>,
 	given a [=/url=] |url| and {{CSSStyleSheet}} sheet,
 	[=fetch a style resource=] given |url|,
 	with stylesheet {{CSSStyleSheet}},
@@ -165,7 +166,7 @@ To <dfn>fetch an external image for a stylesheet</dfn>,
 
 
 Resolution/Type Negotiation: the ''image-set()'' notation {#image-set-notation}
---------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 
 	Delivering the most appropriate image resolution for a user's device can be a difficult task.
 	Ideally, images should be in the same resolution as the device they're being viewed in,
@@ -1638,7 +1639,7 @@ Repeating Gradients: the ''repeating-linear-gradient()'', ''repeating-radial-gra
 
 
 Defining Gradient Color {#gradient-colors}
--------------------------
+------------------------------------------
 
 	The colors in gradients are specified using <dfn export lt="color stop">color stops</dfn>
 	(a <<color>> and a corresponding position on the [=gradient line=])
@@ -1916,7 +1917,7 @@ Color Stop “Fixup”</h4>
 -->
 
 1D Image Values: the <<image-1D>> type and ''stripes()'' notation {#stripes}
-=================================================================
+============================================================================
 
 	While <<image>> values represent a 2-dimensional (2D) image,
 	and <<color>> can be thought of as a 0-dimensional (0D) image
@@ -2489,7 +2490,7 @@ Interpolating <<gradient>> {#interpolating-gradients}
 		interpolate the position and color independently.
 
 Interpolating <<1d-image>> {#interpolating-1d-images}
------------------------------------------------
+-----------------------------------------------------
 
 	Similar to <a lt="interpolating-gradients">gradient images</a>,
 	one-dimensional images can be interpolated directly in CSS transitions and animations,
@@ -2560,18 +2561,18 @@ Serialization {#serialization}
 <h2 id=deprecated class=no-num>
 Appendix A: Deprecated Features and Aliases</h2>
 
-Implementations must accept <dfn>-webkit-image-set()</dfn>
-as a parse-time alias of ''image-set()''.
-(It's a valid value, with identical arguments to ''image-set()'',
-and is turned into ''image-set()'' during parsing.)
+	Implementations must accept <dfn>-webkit-image-set()</dfn>
+	as a parse-time alias of ''image-set()''.
+	(It's a valid value, with identical arguments to ''image-set()'',
+	and is turned into ''image-set()'' during parsing.)
 
 Privacy Considerations {#privacy}
-==============================================
+=================================
 
 Note: No change from [[css3-images]].
 
 Security Considerations {#security}
-==============================================
+===================================
 
 Note: No change from [[css3-images]].