[css-images-4] Fixed code examples text wrapping

Author: LeaVerou

css-images-4/Overview.bs

@@ -729,7 +729,7 @@ Conic Gradient Examples</h4>
 
 	<div class=example>
 		A conic gradient used to draw a simple pie chart. 
-		The 0 color stop positions will be fixed up to be equal to the position of the color stop before them.
+		The ''0deg'' color stop positions will be fixed up to be equal to the position of the color stop before them.
 		This will produce infinitesimal (invisible) transitions between the color stops with different colors,
 		effectively producing solid color segments.
 
@@ -774,26 +774,31 @@ Repeating Gradients: the ''repeating-linear-gradient()'', ''repeating-radial-gra
 	<div class=example>
 		Repeating color stops with abrupt transitions creates a starburst-type background:
 
-		<pre>background: repeating-conic-gradient(
-		                     hsla(0,0%,100%,.2) 0deg 15deg,
-		                     hsla(0,0%,100%,0) 0deg 30deg
-		                 ) #0ac;</pre>
+		<pre>
+			background: repeating-conic-gradient(
+		                    hsla(0,0%,100%,.2) 0deg 15deg,
+		                    hsla(0,0%,100%,0) 0deg 30deg
+		                ) #0ac;</pre>
 
 		<img src="images/repeating-conic2.png" alt="">
 	</div>
 
 	<div class=example>
 		Here repeating color stops with abrupt transitions are used to create a checkerboard:
 
-		<pre>background: repeating-conic-gradient(black 0deg 25%, white 0deg 50%);
-		background-size: 60px 60px;</pre>
+		<pre>
+			background: repeating-conic-gradient(black 0deg 25%, white 0deg 50%);
+			background-size: 60px 60px;
+		</pre>
 
 		<img src="images/repeating-conic3.png" alt="">
 
 		The same checkerboard can be created via non-repeating conic gradients:
 
-		<pre>background: conic-gradient(black 25%, white 0deg 50%, black 0deg 75%, white 0deg);
-		background-size: 60px 60px;</pre>
+		<pre>
+			background: conic-gradient(black 25%, white 0deg 50%, black 0deg 75%, white 0deg);
+			background-size: 60px 60px;
+		</pre>
 	</div>