FAQ: Selectors - Specificity

This community-built FAQ covers the “Specificity” exercise from the lesson “Selectors”.

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This exercise can be found in the following Codecademy content:

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I’m in the “Specificity” chapter and I ran into a question that I think might be super simple but just want clarification. I typed in my code:

**<h5 class="author-class" id="author-id">By: Stacy Gray</h5>**

It says I got it wrong and I looked at the solution and I found out that it was wrong because of the double quotations around the values and needed single quotations. Is there a difference if I use double quotations VS single quotations in HTML? Does the IDE give an error if I don’t use the right quotations around values?



Does anyone here know why the type selector color was used in this exercise rather than the more specific id selector? I thought the id selector would override any other selector already in place.

Amendment: Even though my code was marked as accurate for this exercise, the color changed to yellow, not cornflower blue. Perhaps it is a browser problem?

With thanks,

Hi, Ingrid, I had this impression at first as well. But when I looked again I noticed that what is in yellow (in my case) is the heading ‘Top Attractions’, which is an H5, hence the type selector’s color.
Scrolling up, though, I found that the ‘By: Stacy Gray’ byline right under the main title/H1 was cornflower blue as expected.
Sorry if the suggestion sounds dumb, but as it happened to me, I thought it might help :slight_smile:


1 Like

Hi Deborah,

Thank you for your response. I found out that my Dark Reader browser extension was changing most of the colors in the exercises and therefore causing them to be marked wrong.

Your suggestion definitely does not sound dumb, I did the same thing in a later exercise. :slight_smile:

Best Wishes,

@chrismurill , as far as I know, single-quotes vs double-quotes for HTML attributes is a matter of personal preference, and generally people seem to prefer double quotes.

In fact, if you open the dev tools on this very forum you’ll see it’s all double quotes:


However the examples for these exercises all use single quotes (presumably the author’s preference!). It seems like the automated tests only accept single quotes as well. IMO the tests should accept either since they are both perfectly valid, seems a bit poor form on the part of the author not to, but who knows, maybe that was difficult to implement.

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I put the code in this order:

#author-id {
  color: cornflowerblue;
.author-class {
h5 {
  color: yellow;

It said it was wrong. I put the code the way Codecademy told me and it said it was right. Does order matter?

Yes, it does matter the code between
.index.html and .style.css, has to have the same connection in the order written in index.html and .style.css

h5 {

color: yellow;


.author-class {

color: pink;


#author-id {

color: cornflowerblue;