Did i miss something in this section?

Hi there, Travis Sly! A good portion of this is going to depend on how much experience you have with CSS selectors if you want to use a CSS selector to do this. It's also going to depend a lot on how familiar you are with HTML. There was actually another solution to the first line. You could have also done:

let navigationLinks = document.getElementsByTagName("nav")[0].getElementsByTagName("a");

This would start by picking the first <nav> element and then from within that getting all the <a> tags. You might be inclined to think <li> is a link, but it's a list item. It's the "anchor tag" or <a> for short, which is what we're trying to select.

A CSS selector is how we choose something for styling in CSS. I notice on your profile that you haven't yet accrued any CSS or HTML points, and I think this might be causing this to be more difficult than it needs to be. In CSS if I wanted to select all <nav> elements, I would make a rule like:

nav {
   background-color: tomato;
}

I'm betting that you can guess just by the code above what that rule does. It turns the nav a really obnoxious shade of red orange The # indicates an id.

So if I had:

<div id="silly-div">

</div>

The CSS selector to turn it tomato would be:

#silly-div {
  background-color: tomato;
}

The CSS selector for a class uses a . in front. So if inside that div I had something like:

<div id="silly-div">
    <h2 class="light-heading">My heading</h2>
</div>

I could pick it with CSS by the class:

.light-heading {
    color: white;
}

This would change any element that has that class so that the text color is white.

But let's say I have some paragraphs in that div too and I want their color to be beige. But I don't want every paragraph on the page to be beige because most of the page is a very light color. But this particular div is a really wild orange so beige might look good here. I could pick all the paragraphs inside that div like so:

<div id="silly-div">
    <h2 class="light-heading">My heading</h2>
    <p>First paragraph</p>
    <p>Second paragraph</p>
</div>

#silly-div p {
  color: beige;
}

This would turn every paragraph inside the "#silly-div" beige, but no others. We're confining beige to that one div. The CSS selector here is "#silly-div p".

So with that in mind does "nav a" make more sense knowing that it is a CSS selector?

Hope this helps!

edited for additional information

If you want to learn more about them, we have a course on CSS selectors right here on Treehouse!