How to add a shadow under a navbar using CSS?

Question

I'm an absolute beginner when it comes to HTML & CSS, so I reckon that this might sound easy to some of you.

I was looking for a way to add a simple shadow to the navbar, like the one on codecademy.com/ to my pre-existing nav bar. I'm including the HTML & CSS of it in codepen below:

[https://www.codepen.io/CodingAddict/pen/QWbmBVQ][2]

Solution 1

Add a box-shadow to your nav bar. not to site-header.

nav {
  box-shadow: 0 2px 4px 0 rgba(0,0,0,.2);
}

Solution 2

just add this line in css file

.site-header { box-shadow: 0 2px 4px 0 rgba(0,0,0,.1); }

Change this

.site-header nav { box-shadow: 0 2px 4px 0 rgba(0,0,0,.2);} or nav { box-shadow: 0 2px 4px 0 rgba(0,0,0,.2);}

Comments

[CodingNoob]

I just tried adding that code at the very end of the CSS file, and it unfortunately did not work :( .

[CodingNoob]

Tnx ! Can you explain what each element of that code does, technically ?