Update guidelines/terms/21/motion-animation.html

Co-authored-by: James Craig <[email protected]>

guidelines/terms/21/motion-animation.html

@@ -1,5 +1,5 @@
 <dt><dfn id="dfn-motion-animation">motion animation</dfn></dt>
 <dd>
    <p>addition of steps between conditions to create the illusion of movement or to give a sense of a smooth transition</p>
-	<aside class="example"><p>For example, an element which moves into place or changes size while appearing is considered to be animated. An element which appears or changes instantly, without transition/animation steps, is not using animation.</p><p>Motion animation does not include changes – such as changes of color or opacity – that do not alter the perceived size, shape, position, or distance/depth of the element.</p></aside>
+	<aside class="example"><p>For example, an element which moves into place or changes size while appearing is considered to be animated. An element which appears or changes instantly, without transition/animation steps, is not using animation.</p><p>Motion animation does not include changes – such as changes of color or opacity – that do not alter the perceived size, shape, position, or distance/depth of the element to the viewer.</p></aside>
 </dd>