You need to place your code somewhere where it can be seen live.
FCC says codepen but you can also use codesandbox or host your projects on GitHub pages.
If all this is unfamiliar the easiest is to create an account on codepen and
- copy your HTML and paste it in the HTML editor portion of codepen
- copy your stylesheet and paste it in the CSS editor portion of codepen
Basically codepen is an IDE like Atom but it allows others to see your work.
It will not be able to read from your box. That is, if you have an image locally it must be placed someplace that codepen can reach. (Same with the others that I mentioned) There are a lot of places that allow you to store your images for free.
Something you should know about codepen;
it provides the boilerplate for you. It only expects the code you’d put within the
body element in HTML. (No need to include the
body tags). For anything you want to add to the
<head> element click on the ‘Settings’ button, then HTML and add it into the ‘Stuff for <head>’ box.
So code in Atom but just copy what’s in the
body element and paste that into the HTML editor.
Hope that helps.