I read the [Webkrauts advent calendar article by Jens Grochtdreis](http://webkrauts.de/artikel/2015/ueberschrift-ueber-durchgestrichener-linie) earlier today, it is about headers with lines on the side, like in the article image. (There is a similar [article by Chris Coyier on CSS-Tricks](https://css-tricks.com/line-on-sides-headers/) for English-speaking people out there.) He presents a solution with one or two pseudo-elements and an extra `` in both cases, and has a pretty simple code for i...
