diff --git a/components/prism-css-extras.js b/components/prism-css-extras.js
index 0e95c843b8..3b4261f76e 100644
--- a/components/prism-css-extras.js
+++ b/components/prism-css-extras.js
@@ -1,5 +1,5 @@
 Prism.languages.css.selector = {
-	pattern: /[^{}\s][^{}]*(?=\s*\{)/,
+	pattern: Prism.languages.css.selector,
 	inside: {
 		'pseudo-element': /:(?:after|before|first-letter|first-line|selection)|::[-\w]+/,
 		'pseudo-class': /:[-\w]+(?:\(.*\))?/,
@@ -13,4 +13,4 @@ Prism.languages.insertBefore('css', 'function', {
 	'hexcode': /#[\da-f]{3,8}/i,
 	'entity': /\\[\da-f]{1,8}/i,
 	'number': /[\d%.]+/
-});
\ No newline at end of file
+});
diff --git a/components/prism-css-extras.min.js b/components/prism-css-extras.min.js
index 76b85d1046..f3d252f762 100644
--- a/components/prism-css-extras.min.js
+++ b/components/prism-css-extras.min.js
@@ -1 +1 @@
-Prism.languages.css.selector={pattern:/[^{}\s][^{}]*(?=\s*\{)/,inside:{"pseudo-element":/:(?:after|before|first-letter|first-line|selection)|::[-\w]+/,"pseudo-class":/:[-\w]+(?:\(.*\))?/,"class":/\.[-:.\w]+/,id:/#[-:.\w]+/,attribute:/\[[^\]]+\]/}},Prism.languages.insertBefore("css","function",{hexcode:/#[\da-f]{3,8}/i,entity:/\\[\da-f]{1,8}/i,number:/[\d%.]+/});
\ No newline at end of file
+Prism.languages.css.selector={pattern:Prism.languages.css.selector,inside:{"pseudo-element":/:(?:after|before|first-letter|first-line|selection)|::[-\w]+/,"pseudo-class":/:[-\w]+(?:\(.*\))?/,"class":/\.[-:.\w]+/,id:/#[-:.\w]+/,attribute:/\[[^\]]+\]/}},Prism.languages.insertBefore("css","function",{hexcode:/#[\da-f]{3,8}/i,entity:/\\[\da-f]{1,8}/i,number:/[\d%.]+/});
\ No newline at end of file