How to share a file between two repositories using Git & Bitbucket?
<p>I'm building a web-application that has 2 separate components: The front-end that runs in the user's browser (Javascript + Angular) and a back-end REST Api (Python/Django) that runs on my server and feeds data to all the front-ends. The two parts of this app are placed into two separate Git repositories and stored in BitBucket.</p>

<p>The front-end displays the data to the user win a beautiful interface that has lots of nice CSS defined. The back-end sends emails to the users.</p>

<p>I would like the look-and-feel of the emails to exactly match the front-end's display. All the user's interaction should have a uniform presentation. So where/how should I put the CSS such that it is available in both repositories, but I only have to make changes to it in one place?? </p>

<p>How do I do this with the tools I'm using: Git &amp; Bitbucket?</p>