- Smil: https://css-tricks.com/guide-svg-animations-smil/
- Snap.svg: http://www.pixelite.co.nz/article/using-snap-svg-for-rich-interactivity/
- Centering Stuff
- centering in general: https://www.w3.org/Style/Examples/007/center.en.html#viewport3
- responsive hero custom center w/ text: http://heytiny.net/responsive-hero-image/