typo

Author: svgeesus

css-color-4/Overview.bs

@@ -5692,7 +5692,7 @@ Resolving values of the ''color()'' function</h3>
 	<div class="example" id="ex-system-resolve">
 		For example, in this html:
 
-		<pre class="lang-html">&lt;button style="color: ButtonText; background: Buttonface>&lt;/button></pre>
+		<pre class="lang-html">&lt;button style="color: ButtonText; background: Buttonface">&lt;/button></pre>
 
 		The specified value of the color property is "ButtonText" 
 		while the computed value could be, for example, rgb(0, 0, 0).