The Document Page template contains invalid CSS

If you use the "Document Page" template to generate an element in Designer, it will generate invalid CSS:

(sorry I can't get Jira to stop breaking the examples)

@apply(--layout-vertical);

The correct syntax is:

@apply --layout-vertical;

Should be no parenthesis.

Example to reproduce:

• Go to "Layout Blocks"
• Create a new element
• Use the "Document Page" template