A place to hold HTML/CSS/JS tests and experiments
CSSVARS : Is it time to use CSS Variables yet? (yes, with IE11 Polyfill)
GRID : Is it time to use Grid yet? (yes, as long as you know how many items there are)
IMG SRCSET SIZES : testing srcset size weirdness
PICTURE ELEMENT : basic picture element test
SVG : SVGs that work when loaded directly as well as with xlink
SVG EXPORT : Inline SVG to image via canvas