I have the following code below, and I am trying to make it so that when a user clicks the text of a video streaming website they wish to watch the video from, it will update inside of the iframe.

```
<iframe src="<!-- Desired URL from a href should be here -->" height="240" width="100%">

<ul class="video-links">
   <li><a href="https://our-unique-url-for-this-title.com">YouTube</a></li>
   <li><a href="https://our-unique-url-for-this-title.com">Vimeo</a></li>
   <li><a href="https://our-unique-url-for-this-title.com">DailyMotion</a></li>
   <li><a href="https://our-unique-url-for-this-title.com">Veoh</a></li>
   <li><a href="https://our-unique-url-for-this-title.com">Crackle</a></li>
</ul>

```

How can I go about doing this in a way that can scale just from adding more `<li>` tags into our `video-links` `ul` class?