adding a path() example (mdn#912)

files/en-us/web/css/path()/index.html

@@ -32,6 +32,12 @@ <h3 id="Examples_of_correct_values_for_path">Examples of correct values for path
 path(evenodd,"M 10 80 C 40 10, 65 10, 95 80 S 150 150, 180 80");
 </pre>
 
+<h3 id="Use_in_offset_path">Use as the value of offset-path</h3>
+
+<p>The <code>path()</code> function is used to create a path for the item to travel round. Changing any of the values will cause the path to not neatly run round the circle.</p>
+
+<p>{{EmbedGHLiveSample("css-examples/path/offset-path.html", '100%', 960)}}</p>
+
 <h2 id="Specifications">Specifications</h2>
 
 <table class="standard-table">