Styling elements using CSS selectors

HTML-CSS
1

Hey there, I’m new and i’ve been trying to use CSS selectors to style elements. i tried and it didn’t work. i watched the video and i can’t find where i went wrong. please help.

2

And give some example?
Did you make it trough style or CSS file?

3

it keeps asking me to create a style element. i did that already

4

And where give a link if is in lessons? and did you in Chrome?

5

<style>

h2 {color: blue;}

</style>

<h2>CatPhotoApp</h2>

this is the code

6

Next time give a link such as
https://learn.freecodecamp.org/responsive-web-design/basic-css/use-css-selectors-to-style-elements
And In chrome and mozzilla worked, but in edge not.

7

https://learn.freecodecamp.org/responsive-web-design/basic-css/use-css-selectors-to-style-elements/