Markdown files can be opened in Visual Editor if these conditions are met:
For example, Markdown files that use this layout can be opened in the Visual Editor:
Jekyll content
<div class="content">
{{ content }}
</div>
Hugo content
<div class="content">
{{ .Content }}
</div>
Eleventy content
<div class="content">
{{ content | safe }}
</div>
Other content
There’s no official support to automatically create an Editable Region for content in other SSGs as the way they render content varies greatly.
Markdown files that use this layout can not be opened in the Visual Editor:
Jekyll content
<div class="content">
{{ content }}
<p> Some other content</p>
</div>
Hugo content
<div class="content">
{{ .Content }}
<p> Some other content</p>
</div>
Eleventy content
<div class="content">
{{ content | safe }}
<p> Some other content</p>
</div>
Other content
Not applicable.