Add -apple- prefix
Add "Compositing and Blending"
Add Masking
Fix "Compositing and Blending"'s # syntax
Fix shape-outside and shape-inside

'rectangle' and 'circle' and 'ellipse' and 'polygon' are function.
Add "Filter Effects"
Fix typos and coding style
Update "Compositing and Blending"'s mix
Update box-shadow