Why is the block not displayed after the directive?

Question

Angular

JSFiddle Link
There is a hello-world directive followed by a div block.
What is the difference between these two syntaxes ?
Why is the block after the directive not displayed in the first case, and is displayed in the second case?

<hello-world />
<div>Test</div>

<hello-world></hello-world>
<div>Test</div>

Answer 1

Features of Angular. They decided not to support such parsing.
https://github.com/angular/angular/issues/673
https://github.com/angular/angular/issues/25082