Need help with system not moving to next step

Instructions say" make h1 heading read “Hello World”. I did so as in
<h1>Hello World</h1> and as in
<h1>"Hello World"</h1>

and as in

<h1>"Hello World".</h1>

The system says running test and that stayed that way for over an hour before I gave up. What is wrong?
.

I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make easier to read.

See this post to find the backtick on your keyboard. The “preformatted text” tool in the editor (</>) will also add backticks around text.

Note: Backticks are not single quotes.

markdown_Forums

Are you by any chance using Edge, IE, or Safari as your browser? Free Code Camp has been updated to use newer technologies. It makes the application much faster and it means that we can go much longer without having to do a huge migration like the recent one. However, Edge, Internet Explorer, and Safari are very bad about choosing not to adhere to standards and support new functionality in JS and CSS. Right now, that means that these browsers exhibit lots of unexpected behavior. If you become a web developer you will come to hate these browsers with every fiber of your being.

Edge and Safari I would say are considered newer technologies.

They often fail to support new web stardards or do so only years after Chrome and Firefox.