[css-animations][bikeshed] Minor bikeshed content and markup fixes

Author: Sylvain Galineau

css-animations/Overview.bs

@@ -188,14 +188,14 @@ Keyframes</h2>
 	'animation-timing-function', the behavior of which is described below. In addition, keyframe rule 
 	declarations qualified with !important are ignored. 
 
-	Issue: Need to describe what happens if a property is not present in all keyframes.
+	<p class="issue">Need to describe what happens if a property is not present in all keyframes.</p>
 
 	The @keyframes rule that is used by an animation will be the last one encountered in sorted rules 
 	order that matches the name of the animation specified by the 'animation-name' property. @keyframes 
 	rules do not cascade; therefore, an animation will never derive keyframes from more than one 
 	@keyframes rule.
 
-	Note: Note that since empty @keyframes rule are valid, they may hide the keyframes of those 
+	<p class="note">Note that since empty @keyframes rule are valid, they may hide the keyframes of those 
 	preceding animation definitions with a matching name.
 
 	To determine the set of keyframes, all of the values in the selectors are sorted in increasing order 
@@ -302,6 +302,9 @@ Timing functions for keyframes</h3>
 		behaves in a similar manner, but only moves the element 25px up the page. 
 	</div>
 
+	A timing function specified on the ''to'' or 100% keyframe is ignored.
+
+	See the 'animation-timing-function' property for more information. 
 
 <h3 id="animation-name">
 The 'animation-name' property</h3>
@@ -448,7 +451,7 @@ The 'animation-direction' property</h3>
 			counts are played in a normal direction. 
 	</dl>
 
-	Note: Note that for the purpose of determining whether an iteration is even or odd, 
+	<p class="note">Note that for the purpose of determining whether an iteration is even or odd, 
 	iterations start counting from 1.