which Version of the demo do you work from in the download as I cannot find nav__item class

There are 9 videos total in this section, and folders v1-v9 in the project files download. "Dynamic Navigation" is the 6th video, so to follow along you need to use the v6/ folder inside of the project files.

Inside of v6/ there are 2 folders:

• v6/webconfs - this is the code to start from in the beginning of the video
• v6/webconfs_final - this is what the code should look like after following the video

After Guil finishes, the nav__item in _includes/header.html class changes a bit.

Before (in webconfs/):

{% if page.title %}
<li class="nav__item">
    <a href="{{ page.url | prepend: site.baseurl }}">{{ page.title }}</a>
</li>
{% endif %}

After (in webconfs_final/):

{% if page.title %}
<li {% if location == current %} class="nav__item--current" {% else %} class="nav__item" {% endif %}>
    <a href="{{ page.url | prepend: site.baseurl }}">{{ page.title }}</a>
</li>
{% endif %}

So the li with nav__item class is still there, but in the final version there is additional logic that decides if it should be nav__item or nav__item--current based which page is currently being viewed.