@styles has a parent relationship with @style() directive.
The main function is that it is being used to pull all css imports to one single places within a template page.
This means that all @style() imports are placed into one single space line after line.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>>
@styles
</head>
<body>
@style('some/css/layout:one')
<-- some html code here ... -->
@style('some/css/layout:two')
</body>
</html>
@styles
@styles directive was declared.
This saves a lot of time when debugging css files, making it easier to
locate css imported styles. Also, each style tag is supplied a
"rel" attribute that provides a pointer assistance
to the styles imported.