The addition of a constructor to the <a data-l10n-name="mdn-cssstylesheet">CSSStyleSheet</a> interface as well as a variety of related changes makes it possible to directly create new stylesheets without having to add the sheet to the HTML. This makes it much easier to create reusable stylesheets for use with <a data-l10n-name="mdn-shadowdom">Shadow DOM</a>. See <a data-l10n-name="bugzilla">bug 1520690</a> for more details.
Timerna n umeṣkaw ɣer ugrudem <a data-l10n-name="mdn-cssstylesheet">CSSStyleSheet</a> d tegrumma n yisenfal yemgaraden yemcudden, yezmer ad ttwarnunt srid tferkiyin timaynutin n uɣanib s war timerna n tferkit HTML. Aya ad yessishel timerna n tferkiyin n uɣanib ara yettwallsen deg useqdec i useqdec d <a data-l10n-name="mdn-shadowdom">Shadow DOM</a>. Wali <a data-l10n-name="bugzilla">abug1520690</a> i wugar n telqayt.