Deprecating cssnext

Like I said in my farewell to CSS post, I don't use CSS directly anymore. And things have been this way for years now. I also have been tired of PostCSS (because I disagree with the vision and the directions taken by the project). Beside the fact that I were not using CSS directly anymore, too many PostCSS releases meant that I had to update most of the PostCSS plugins underneath cssnext in order

[ko-ya-ma]

“Just switch to postcss-preset-env” だそうな

[efcl]

`cssnext`がdeprecatedとなり、`postcss-preset-env`の利用が推奨されるようになった。 マイグレーション方法や違いについてなど

[mizchi]

postcss 一強時代へ

[amagitakayosi]

納得感はある