The course materials for the University of Applied Sciences Upper Austria course on CSS. It's all about modern CSS techniques. Positioning, animation, filters? Oh yeah.
Link to the internal Elearning Forum
- https://css-tricks.com/snippets/css/a-guide-to-flexbox/
- https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Flexible_Box_Layout/Using_CSS_flexible_boxes
- http://flexboxfroggy.com/