Can I use stackedit's style.css freely?


I want to write a blog using stackedit.

After I write a post using stackedit, I export it as HTML. Then, I need a css.
If I select “Styled HTML” when export, there is a link tag with href=“” in the HTML source code.

Can I use this style.css freely in my blog?

I know the license of stackedit is Apache-2.0, but I could not find the style.css in the repository.