CSS @supports

Feature detection via JavaScript is a client side best practice and for all the right reasons, but unfortunately that same functionality hasn't been available within CSS. What we end up doing is repeating the same properties multiple times with each browser prefix. Yuck. Another thing we do check for CSS property support with JavaScript which leads to brief flashes of content, hopeful code and

[m_o_k_a]

CSSの@supports

[a_damitu]

CSS @supports

[oppara]

CSS @supports

[teppeis]

FF20で実装されたCSS.supprotsとか。まだデフォルト無効なのでabout:configでlayout.CSS.supports-rule.enabledをtrueにする必要あるよ。

[efcl]

CSSの@supportsとJavaScriptのCSS.supportsメソッドについて