[css-text-decor-4] Fix links/markup

Author: fantasai

css-text-decor-4/Overview.bs

@@ -12,7 +12,6 @@ Issue Tracking: Tracker http://www.w3.org/Style/CSS/Tracker/products/10
 Editor: Elika J. Etemad / fantasai, Invited Expert, http://fantasai.inkedblade.net/contact, w3cid 35400
 Editor: Koji Ishii, Google, kojiishi@gmail.com, w3cid 45369
 Abstract: This module contains the features of CSS relating to text decoration, such as underlines, text shadows, and emphasis marks.
-Link Defaults: css-color-3 (property) color, css-break-3 (dfn) fragment
 </pre>
 
 <pre class="link-defaults">
@@ -83,7 +82,7 @@ Line Decoration: Underline, Overline, and Strike-Through</h2>
 	The following properties describe line decorations that are added to the content of an element.
 	When specified on or propagated to an <a>inline box</a>,
 	that <a>box</a> becomes a <dfn>decorating box</dfn> for that decoration,
-	applying the decoration to all its <a>fragments</a>.
+	applying the decoration to all its <a>box fragments</a>.
 	The decoration is then further propagated to any <a>in-flow</a> <a>block-level</a> boxes that split the inline
 	(see <a href="https://www.w3.org/TR/CSS21/visuren.html#anonymous-block-level">CSS2.1 section 9.2.1.1</a>).
 	When specified on or propagated to a <a>block container</a> that establishes an <a>inline formatting context</a>,
@@ -345,7 +344,7 @@ Text Decoration Line Thickness: the 'text-decoration-thickness' property</h3>
 			Note: A length will inherit as a fixed value,
 			and will not scale with the font.
 
-		<dt><dfn><<percentage>>
+		<dt><dfn><<percentage>></dfn>
 		<dd>
 			<p>Specifies the thickness of text decoration lines as a percentage of ''1em''.
 			The UA must floor the actual value at one device pixel.
@@ -393,7 +392,7 @@ Determining the Position and Thickness of Line Decorations</h3>
 			<a>over</a> EM-box edge
 			of the <a>considered text</a>.
 
-		<dt><a>alphabetic</a> underlines
+		<dt>alphabetic underlines
 		<dd>
 			The alphabetic underline position is calculated by taking
 			the ideal offset (from the alphabetic baseline) of each run of <a>considered text</a>,