You can use the following CSS classes to add additional formatting to your articles.
| Class | Description |
| intro | paragraph as h2 |
| last | paragraph bottom margin: 0, credits-table border: 0 |
| credits | table |
| tracklist | description list |
| wide767 | image or gallery for <768 |
| image-container | container for the images |
| embed-container | container 16:9 |
| embed-container-*by* | ratio adjustment of the embed-container 17:10, 5:3, 16:10, 3:2, 14:10, 4:3, 1:1, 3:4, 10:14, 210:297, 2:3, 3:5 |
| embed-item | embedded object, e.g. iframe for vimeo or issuu, 100% width/height |
| embed-image | embedded image, as in the gallery, 100% maximum width/height, center/center |
| top-* | top margin 0–12 interlines |
| bottom-* | bottom margin 0–12 interlines |
| span* | columns 1–12 for 980–1199, <768 |
| offset* | offsets 1–12 for 980–1199, <768 |
| col-sm-* | columns 1–12 for 768–979 |
| col-sm-offset-* | offsets 1–12 for 768–979 |
| col-lg-* | columns 1–12 for 1200–1599 |
| col-lg-offset-* | offsets 1–12 for 1200–1599 |
| col-hd-* | columns 1–12 for >1600 |
| col-hd-offset-* | offsets 1–12 for >1600 |
