linting: Start enforcing a basic CSS class naming rule (with lots of opt-outs)

Wow, so many opt-outs, and a lot of probably-not-going-to-change ones.

Actually wanted pattern:
* "^mw-…"

Content-related classes we're probably not going to scrap:
* "^wikitable$"

Hard-to-change classes used in lots of skins:
* "^toc$"
* "^toctoggle$"
* "^tochidden$"

Necessary for over-rides/specificity battles:
* "^oo-ui-…"

Probably worth considering changing soon:
* "^client-js$"
* "^client-nojs$"

Some of the exemptions have been applied to deprecated styles (where they're being
renamed); some are for code in entirely deprecated areas themselves; some have the
"wrong" name but sit alongside classes with an appropriate one. And some are, very
clearly, in the wrong repo. Such sigh.

Change-Id: I9b8423d53b6750b5ca79d2f69e111f75c93c5bdc

56 files changed, 103 insertions, 1 deletions

diff --git a/.stylelintrc.json b/.stylelintrc.json
index 60c8f36d4806..43f499b5a63b 100644
--- a/.stylelintrc.json
+++ b/.stylelintrc.json
@@ -1,8 +1,8 @@
 {
 	"extends": "stylelint-config-wikimedia",
 	"rules": {
+		"selector-class-pattern": "^((mw|oo-ui)-|(wikitable|(toc(|toggle|hidden))|client-(no)?js)$)",
 		"no-descending-specificity": null,
-
 		"selector-max-id": null
 	}
 }
diff --git a/mw-config/config-cc.css b/mw-config/config-cc.css
index 511cd0378c67..81cb92d36e69 100644
--- a/mw-config/config-cc.css
+++ b/mw-config/config-cc.css
@@ -2,6 +2,8 @@
  * Copy of CC standard stylesheet, plus tweaks for iframe usage
  */
 
+/* stylelint-disable selector-class-pattern */
+
 body {
 	margin: 0;
 	background: #eee;
diff --git a/mw-config/config.css b/mw-config/config.css
index 1b2574d58939..8b3b39e80921 100644
--- a/mw-config/config.css
+++ b/mw-config/config.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 .env-check {
 	font-size: 90%;
 	margin: 1em 0 1em 2.5em;
diff --git a/resources/src/jquery.tablesorter.styles/jquery.tablesorter.styles.less b/resources/src/jquery.tablesorter.styles/jquery.tablesorter.styles.less
index c941da0557d3..7ff7c11a9c5e 100644
--- a/resources/src/jquery.tablesorter.styles/jquery.tablesorter.styles.less
+++ b/resources/src/jquery.tablesorter.styles/jquery.tablesorter.styles.less
@@ -1,5 +1,7 @@
 @import 'mediawiki.mixins';
 
+/* stylelint-disable selector-class-pattern */
+
 /* Table Sorting */
 
 .client-js .sortable:not( .jquery-tablesorter ) > thead > :last-of-type > th:not( .unsortable ),
diff --git a/resources/src/jquery.tipsy/jquery.tipsy.css b/resources/src/jquery.tipsy/jquery.tipsy.css
index ea6070232785..c239a8ff3b0c 100644
--- a/resources/src/jquery.tipsy/jquery.tipsy.css
+++ b/resources/src/jquery.tipsy/jquery.tipsy.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 .tipsy {
 	padding: 5px;
 	position: absolute;
diff --git a/resources/src/jquery/jquery.confirmable.css b/resources/src/jquery/jquery.confirmable.css
index 78c4c044c16a..ac68b7a359e9 100644
--- a/resources/src/jquery/jquery.confirmable.css
+++ b/resources/src/jquery/jquery.confirmable.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 .jquery-confirmable-button {
 	/* Automatically flipped */
 	margin-left: 1ex;
diff --git a/resources/src/jquery/jquery.suggestions.css b/resources/src/jquery/jquery.suggestions.css
index 825c7cafa063..7c6d0320454e 100644
--- a/resources/src/jquery/jquery.suggestions.css
+++ b/resources/src/jquery/jquery.suggestions.css
@@ -1,5 +1,7 @@
 /* suggestions plugin */
 
+/* stylelint-disable selector-class-pattern */
+
 .suggestions {
 	overflow: hidden;
 	position: absolute;
diff --git a/resources/src/mediawiki.action/mediawiki.action.edit.collapsibleFooter.css b/resources/src/mediawiki.action/mediawiki.action.edit.collapsibleFooter.css
index b5a96654f98b..b8c3a440170a 100644
--- a/resources/src/mediawiki.action/mediawiki.action.edit.collapsibleFooter.css
+++ b/resources/src/mediawiki.action/mediawiki.action.edit.collapsibleFooter.css
@@ -12,6 +12,7 @@
 
 /* Show/hide animation is incorrect if the table has a margin set. Extra
  * ".wikitable" is needed in the selector for CSS specificity. */
+/* stylelint-disable-next-line selector-class-pattern */
 .wikitable.preview-limit-report {
 	margin: 0;
 }
diff --git a/resources/src/mediawiki.action/mediawiki.action.edit.styles.less b/resources/src/mediawiki.action/mediawiki.action.edit.styles.less
index 136742664543..fc806c68778d 100644
--- a/resources/src/mediawiki.action/mediawiki.action.edit.styles.less
+++ b/resources/src/mediawiki.action/mediawiki.action.edit.styles.less
@@ -2,6 +2,8 @@
  * Styles for elements of the editing form.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /*
  * Add a bit of margin space between the preview and the toolbar.
  * This replaces the ugly <p><br /></p> we used to insert into the page source
diff --git a/resources/src/mediawiki.action/mediawiki.action.history.css b/resources/src/mediawiki.action/mediawiki.action.history.css
index 520917a40ca8..542599014a34 100644
--- a/resources/src/mediawiki.action/mediawiki.action.history.css
+++ b/resources/src/mediawiki.action/mediawiki.action.history.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 /* Styles for the JavaScript enhancements of the history page */
 
 #pagehistory li.before input[ name='oldid' ],
diff --git a/resources/src/mediawiki.action/mediawiki.action.history.styles.less b/resources/src/mediawiki.action/mediawiki.action.history.styles.less
index af9181897a2b..12656378f080 100644
--- a/resources/src/mediawiki.action/mediawiki.action.history.styles.less
+++ b/resources/src/mediawiki.action/mediawiki.action.history.styles.less
@@ -2,6 +2,8 @@
  * Basic styles for the edit revision history page 'HistoryAction.php'
  */
 
+/* stylelint-disable selector-class-pattern */
+
 // Trigger only when collapsible & JS is available via `.mw-collapsed`.
 #mw-history-search.mw-collapsed .oo-ui-fieldsetLayout-header .oo-ui-labelElement-label {
 	margin-bottom: 0;
diff --git a/resources/src/mediawiki.action/mediawiki.action.view.categoryPage.less b/resources/src/mediawiki.action/mediawiki.action.view.categoryPage.less
index abdee120b7ff..274b3d302247 100644
--- a/resources/src/mediawiki.action/mediawiki.action.view.categoryPage.less
+++ b/resources/src/mediawiki.action/mediawiki.action.view.categoryPage.less
@@ -16,6 +16,7 @@
 	}
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .redirect-in-category {
 	font-style: italic;
 }
diff --git a/resources/src/mediawiki.action/mediawiki.action.view.filepage.css b/resources/src/mediawiki.action/mediawiki.action.view.filepage.css
index b643d767c372..b8d4e70f0cbd 100644
--- a/resources/src/mediawiki.action/mediawiki.action.view.filepage.css
+++ b/resources/src/mediawiki.action/mediawiki.action.view.filepage.css
@@ -2,6 +2,8 @@
  * File description page
  */
 
+/* stylelint-disable selector-class-pattern */
+
 .mw-filepage-resolutioninfo {
 	font-size: smaller;
 }
diff --git a/resources/src/mediawiki.action/mediawiki.action.view.metadata.css b/resources/src/mediawiki.action/mediawiki.action.view.metadata.css
index f21b1115b78d..dad32382a10c 100644
--- a/resources/src/mediawiki.action/mediawiki.action.view.metadata.css
+++ b/resources/src/mediawiki.action/mediawiki.action.view.metadata.css
@@ -13,6 +13,7 @@
 }
 
 @media print {
+	/* stylelint-disable-next-line selector-class-pattern */
 	.mw_metadata .mw-metadata-show-hide-extended {
 		display: none;
 	}
diff --git a/resources/src/mediawiki.action/mediawiki.action.view.postEdit.less b/resources/src/mediawiki.action/mediawiki.action.view.postEdit.less
index 46976d4c04e4..c40b1c369f22 100644
--- a/resources/src/mediawiki.action/mediawiki.action.view.postEdit.less
+++ b/resources/src/mediawiki.action/mediawiki.action.view.postEdit.less
@@ -1,5 +1,7 @@
 @import 'mediawiki.mixins';
 
+/* stylelint-disable selector-class-pattern */
+
 .postedit-container {
 	margin: 0 auto;
 	position: fixed;
diff --git a/resources/src/mediawiki.action/mediawiki.action.view.postEdit.monobook.css b/resources/src/mediawiki.action/mediawiki.action.view.postEdit.monobook.css
index 50f0c8a6e028..8cbb924e71e4 100644
--- a/resources/src/mediawiki.action/mediawiki.action.view.postEdit.monobook.css
+++ b/resources/src/mediawiki.action/mediawiki.action.view.postEdit.monobook.css
@@ -1,3 +1,4 @@
+/* stylelint-disable-next-line selector-class-pattern */
 .postedit {
 	top: 6em;
 }
diff --git a/resources/src/mediawiki.action/mediawiki.action.view.redirectPage.css b/resources/src/mediawiki.action/mediawiki.action.view.redirectPage.css
index dccbaccef40a..b5eaf8eacf57 100644
--- a/resources/src/mediawiki.action/mediawiki.action.view.redirectPage.css
+++ b/resources/src/mediawiki.action/mediawiki.action.view.redirectPage.css
@@ -2,6 +2,8 @@
  * Display neat icons on redirect pages.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /* Hide, but keep accessible for screen-readers. */
 .redirectMsg p {
 	overflow: hidden;
diff --git a/resources/src/mediawiki.apihelp.css b/resources/src/mediawiki.apihelp.css
index 7528fdbb302c..d1f32ab3b736 100644
--- a/resources/src/mediawiki.apihelp.css
+++ b/resources/src/mediawiki.apihelp.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 .apihelp-header {
 	clear: both;
 	margin-bottom: 0.1em;
diff --git a/resources/src/mediawiki.apipretty.css b/resources/src/mediawiki.apipretty.css
index 99e4569581b0..3e921f419fa7 100644
--- a/resources/src/mediawiki.apipretty.css
+++ b/resources/src/mediawiki.apipretty.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 .mw-special-ApiHelp h1.firstHeading {
 	display: none;
 }
diff --git a/resources/src/mediawiki.content.json.less b/resources/src/mediawiki.content.json.less
index e084ab81c267..ca950d58ec97 100644
--- a/resources/src/mediawiki.content.json.less
+++ b/resources/src/mediawiki.content.json.less
@@ -18,6 +18,7 @@
 	padding: 0.5em 1em;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .mw-json .value,
 .mw-json-single-value {
 	background-color: #dcfae3;
diff --git a/resources/src/mediawiki.debug/debug.less b/resources/src/mediawiki.debug/debug.less
index a56e4592a2aa..272e7e0498c9 100644
--- a/resources/src/mediawiki.debug/debug.less
+++ b/resources/src/mediawiki.debug/debug.less
@@ -33,10 +33,12 @@
 			border-bottom: 1px solid #eee;
 			word-wrap: break-word;
 
+			/* stylelint-disable-next-line selector-class-pattern */
 			&.nr {
 				text-align: right;
 			}
 
+			/* stylelint-disable-next-line selector-class-pattern */
 			span.stats {
 				color: #727272;
 			}
@@ -78,6 +80,7 @@
 		cursor: pointer;
 	}
 
+	/* stylelint-disable-next-line selector-class-pattern */
 	&.current {
 		background-color: #dedede;
 	}
diff --git a/resources/src/mediawiki.diff.styles/diff.css b/resources/src/mediawiki.diff.styles/diff.css
index 2053843e06ee..6382ac83986d 100644
--- a/resources/src/mediawiki.diff.styles/diff.css
+++ b/resources/src/mediawiki.diff.styles/diff.css
@@ -2,6 +2,8 @@
  * Diff rendering
  */
 
+/* stylelint-disable selector-class-pattern */
+
 .diff {
 	border: 0;
 	border-spacing: 4px;
diff --git a/resources/src/mediawiki.diff.styles/print.css b/resources/src/mediawiki.diff.styles/print.css
index 76b5c9b7aeb5..159e7ae9b37e 100644
--- a/resources/src/mediawiki.diff.styles/print.css
+++ b/resources/src/mediawiki.diff.styles/print.css
@@ -1,3 +1,4 @@
+/* stylelint-disable selector-class-pattern */
 /*!
  * Diff rendering
  */
diff --git a/resources/src/mediawiki.feedlink/feedlink.css b/resources/src/mediawiki.feedlink/feedlink.css
index 37808d57d5ec..13d0ba147a47 100644
--- a/resources/src/mediawiki.feedlink/feedlink.css
+++ b/resources/src/mediawiki.feedlink/feedlink.css
@@ -1,5 +1,6 @@
 /* Styles for links to RSS/Atom feeds in sidebar */
 
+/* stylelint-disable-next-line selector-class-pattern */
 a.feedlink {
 	/* SVG support using a transparent gradient to guarantee cross-browser
 	 * compatibility (browsers able to understand gradient syntax support also SVG).
diff --git a/resources/src/mediawiki.filewarning/filewarning.less b/resources/src/mediawiki.filewarning/filewarning.less
index bf9634f6a5da..a608437dda4a 100644
--- a/resources/src/mediawiki.filewarning/filewarning.less
+++ b/resources/src/mediawiki.filewarning/filewarning.less
@@ -1,5 +1,7 @@
 @import 'mediawiki.ui/variables';
 
+/* stylelint-disable selector-class-pattern */
+
 // Increase the area of the button, so that the user can move the mouse cursor
 // to the popup without the popup disappearing. (T157544)
 .mediawiki-filewarning-anchor {
diff --git a/resources/src/mediawiki.hlist/default.css b/resources/src/mediawiki.hlist/default.css
index e25a92fb7740..d9612a8b3dd5 100644
--- a/resources/src/mediawiki.hlist/default.css
+++ b/resources/src/mediawiki.hlist/default.css
@@ -2,6 +2,9 @@
  * Stylesheet for mediawiki.hlist module
  * @author [[User:Edokter]]
  */
+
+/* stylelint-disable selector-class-pattern */
+
 /* Generate interpuncts */
 .hlist dt:after {
 	content: ':';
diff --git a/resources/src/mediawiki.hlist/hlist.less b/resources/src/mediawiki.hlist/hlist.less
index d7071e451503..5bc6a68a7fd5 100644
--- a/resources/src/mediawiki.hlist/hlist.less
+++ b/resources/src/mediawiki.hlist/hlist.less
@@ -1,3 +1,4 @@
+/* stylelint-disable-next-line selector-class-pattern */
 .hlist {
 	dl,
 	ol,
diff --git a/resources/src/mediawiki.htmlform.ooui.styles.less b/resources/src/mediawiki.htmlform.ooui.styles.less
index ecf728b2b09c..f356fa2ffe11 100644
--- a/resources/src/mediawiki.htmlform.ooui.styles.less
+++ b/resources/src/mediawiki.htmlform.ooui.styles.less
@@ -1,5 +1,7 @@
 @import 'mediawiki.mixins';
 
+/* stylelint-disable selector-class-pattern */
+
 // OOUIHTMLForm styles
 @ooui-font-size-browser: 16; // assumed browser default of `16px`
 @ooui-font-size-base: 0.875em; // equals `14px` at browser default of `16px`
diff --git a/resources/src/mediawiki.interface.helpers.styles.less b/resources/src/mediawiki.interface.helpers.styles.less
index cfabab6838c7..a0e9f150fbdd 100644
--- a/resources/src/mediawiki.interface.helpers.styles.less
+++ b/resources/src/mediawiki.interface.helpers.styles.less
@@ -8,6 +8,7 @@
 	content: '. .';
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .comment--without-parentheses,
 .mw-changeslist-links,
 .mw-diff-bytes,
diff --git a/resources/src/mediawiki.legacy/commonPrint.css b/resources/src/mediawiki.legacy/commonPrint.css
index c21b254216c4..e58e6770966b 100644
--- a/resources/src/mediawiki.legacy/commonPrint.css
+++ b/resources/src/mediawiki.legacy/commonPrint.css
@@ -6,6 +6,8 @@
  * Copyright Alexander Limi
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /**
  * Hide all the elements irrelevant for printing
  * Skins however can and should override.
diff --git a/resources/src/mediawiki.legacy/oldshared.css b/resources/src/mediawiki.legacy/oldshared.css
index caaebade7c27..92c0207795f8 100644
--- a/resources/src/mediawiki.legacy/oldshared.css
+++ b/resources/src/mediawiki.legacy/oldshared.css
@@ -4,6 +4,8 @@
  * CologneBlue, the old pre-Monobook skins
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /* For clarity, explicitly state some recommendations from
  * https://www.w3.org/TR/CSS21/sample.html to make sure the editsection links scale right
  */
diff --git a/resources/src/mediawiki.legacy/shared.css b/resources/src/mediawiki.legacy/shared.css
index a63c5c65e741..baf2c5629bc2 100644
--- a/resources/src/mediawiki.legacy/shared.css
+++ b/resources/src/mediawiki.legacy/shared.css
@@ -9,6 +9,8 @@
  * blocking CSS common to all pages.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /* GENERAL CLASSES FOR DIRECTIONALITY SUPPORT */
 
 /**
diff --git a/resources/src/mediawiki.page.gallery.styles/gallery.css b/resources/src/mediawiki.page.gallery.styles/gallery.css
index 6a331b6cd7d9..b7a424f1fd14 100644
--- a/resources/src/mediawiki.page.gallery.styles/gallery.css
+++ b/resources/src/mediawiki.page.gallery.styles/gallery.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 /* Galleries */
 /* These display attributes look nonsensical, but are needed to support IE and FF2 */
 /* Don't forget to update gallery.print.css */
diff --git a/resources/src/mediawiki.page.gallery.styles/print.css b/resources/src/mediawiki.page.gallery.styles/print.css
index f7a3f0ddbda6..2b596ab078b6 100644
--- a/resources/src/mediawiki.page.gallery.styles/print.css
+++ b/resources/src/mediawiki.page.gallery.styles/print.css
@@ -1,3 +1,4 @@
+/* stylelint-disable selector-class-pattern */
 li.gallerybox {
 	vertical-align: top;
 	display: inline-block;
diff --git a/resources/src/mediawiki.pager.tablePager/TablePager.less b/resources/src/mediawiki.pager.tablePager/TablePager.less
index 1cccb88a4357..4c82192fa306 100644
--- a/resources/src/mediawiki.pager.tablePager/TablePager.less
+++ b/resources/src/mediawiki.pager.tablePager/TablePager.less
@@ -3,6 +3,8 @@
  * in MediaWiki (used e.g. on Special:ListFiles).
  */
 
+/* stylelint-disable selector-class-pattern */
+
 @import 'mediawiki.mixins';
 
 // TablePager uses `.mw-datatable` and is loaded in the right order by RL
diff --git a/resources/src/mediawiki.rcfilters/styles/mw.rcfilters.less b/resources/src/mediawiki.rcfilters/styles/mw.rcfilters.less
index 689f3229fa3c..bc558a51b38c 100644
--- a/resources/src/mediawiki.rcfilters/styles/mw.rcfilters.less
+++ b/resources/src/mediawiki.rcfilters/styles/mw.rcfilters.less
@@ -2,6 +2,8 @@
 @import 'mediawiki.ui/variables';
 @import 'mw.rcfilters.mixins';
 
+/* stylelint-disable selector-class-pattern */
+
 @rcfilters-spinner-size: 12px;
 @rcfilters-head-min-height: 210px;
 @rcfilters-head-margin-bottom: 20px;
diff --git a/resources/src/mediawiki.searchSuggest/searchSuggest.css b/resources/src/mediawiki.searchSuggest/searchSuggest.css
index 8d56906fcd7a..3907329c6526 100644
--- a/resources/src/mediawiki.searchSuggest/searchSuggest.css
+++ b/resources/src/mediawiki.searchSuggest/searchSuggest.css
@@ -1,3 +1,5 @@
+/* stylelint-disable selector-class-pattern */
+
 /* Make sure the links are not underlined or colored, ever. */
 /* There is already a :focus / :hover indication on the <div>. */
 .suggestions a.mw-searchSuggest-link,
diff --git a/resources/src/mediawiki.skinning/content.css b/resources/src/mediawiki.skinning/content.css
index 3104a69a0e0f..054bc273ec5f 100644
--- a/resources/src/mediawiki.skinning/content.css
+++ b/resources/src/mediawiki.skinning/content.css
@@ -5,6 +5,8 @@
  * (ie: the CSS classing built into the system), like the TOC.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /* Table of Contents */
 .toc,
 .mw-warning,
diff --git a/resources/src/mediawiki.skinning/content.externallinks.less b/resources/src/mediawiki.skinning/content.externallinks.less
index c6390c0ade77..b01c518207eb 100644
--- a/resources/src/mediawiki.skinning/content.externallinks.less
+++ b/resources/src/mediawiki.skinning/content.externallinks.less
@@ -2,6 +2,8 @@
  * Icons and colors for external links.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 @import 'mediawiki.mixins';
 
 .mw-parser-output a.external,
diff --git a/resources/src/mediawiki.skinning/content.parsoid.less b/resources/src/mediawiki.skinning/content.parsoid.less
index 8b2657d4b0ed..51018f7d376c 100644
--- a/resources/src/mediawiki.skinning/content.parsoid.less
+++ b/resources/src/mediawiki.skinning/content.parsoid.less
@@ -2,6 +2,8 @@
  * Style Parsoid HTML+RDFa output consistent with wikitext from PHP parser.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /*
  * Auto-numbered external links
  * Parsoid renders those as link without content, and lets CSS do the
diff --git a/resources/src/mediawiki.skinning/elements.css b/resources/src/mediawiki.skinning/elements.css
index a33595c33d2e..fed82358581c 100644
--- a/resources/src/mediawiki.skinning/elements.css
+++ b/resources/src/mediawiki.skinning/elements.css
@@ -6,6 +6,8 @@
  * This style sheet is used by the Monobook and Vector skins.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /* Links */
 a {
 	text-decoration: none;
diff --git a/resources/src/mediawiki.skinning/interface.css b/resources/src/mediawiki.skinning/interface.css
index e9a2b08a8944..c559048fa5bd 100644
--- a/resources/src/mediawiki.skinning/interface.css
+++ b/resources/src/mediawiki.skinning/interface.css
@@ -6,6 +6,8 @@
  * they are outputted by the actual MonoBook/Vector code by convention.
  */
 
+/* stylelint-disable selector-class-pattern */
+
 /* Categories */
 .catlinks {
 	border: 1px solid #a2a9b1;
diff --git a/resources/src/mediawiki.special.apisandbox/apisandbox.css b/resources/src/mediawiki.special.apisandbox/apisandbox.css
index d7415c9a45cc..c07119979f1b 100644
--- a/resources/src/mediawiki.special.apisandbox/apisandbox.css
+++ b/resources/src/mediawiki.special.apisandbox/apisandbox.css
@@ -100,11 +100,13 @@
 	min-width: 6em;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .apihelp-deprecated {
 	font-weight: bold;
 	color: #d33;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .apihelp-deprecated-value .oo-ui-labelElement-label {
 	text-decoration: line-through;
 }
diff --git a/resources/src/mediawiki.special.changeslist.enhanced.less b/resources/src/mediawiki.special.changeslist.enhanced.less
index d7923f4fadbc..f0b6913d998f 100644
--- a/resources/src/mediawiki.special.changeslist.enhanced.less
+++ b/resources/src/mediawiki.special.changeslist.enhanced.less
@@ -28,6 +28,7 @@ td.mw-enhanced-rc {
 }
 
 /* Show/hide arrows in enhanced changeslist */
+/* stylelint-disable-next-line selector-class-pattern */
 .mw-enhanced-rc .collapsible-expander {
 	float: none;
 }
@@ -53,6 +54,7 @@ td.mw-enhanced-rc {
 	font-weight: bold;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 span.changedby {
 	font-size: 95%;
 }
diff --git a/resources/src/mediawiki.special.search.interwikiwidget.styles.less b/resources/src/mediawiki.special.search.interwikiwidget.styles.less
index 81c8dc98610a..5f99f8251233 100644
--- a/resources/src/mediawiki.special.search.interwikiwidget.styles.less
+++ b/resources/src/mediawiki.special.search.interwikiwidget.styles.less
@@ -4,6 +4,8 @@
 @import 'mediawiki.ui/variables.less';
 @import 'mediawiki.mixins';
 
+/* stylelint-disable selector-class-pattern */
+
 .mw-searchresults-has-iw {
 	.iw-headline {
 		font-weight: bold;
diff --git a/resources/src/mediawiki.special.search.styles.css b/resources/src/mediawiki.special.search.styles.css
index 0f27420ee833..dcb51fa34bc1 100644
--- a/resources/src/mediawiki.special.search.styles.css
+++ b/resources/src/mediawiki.special.search.styles.css
@@ -1,5 +1,7 @@
 /* Special:Search */
 
+/* stylelint-disable selector-class-pattern */
+
 /*
  * Fixes sister projects box moving down the extract
  * of the first result (T18886).
diff --git a/resources/src/mediawiki.special.userlogin.common.styles/userlogin.css b/resources/src/mediawiki.special.userlogin.common.styles/userlogin.css
index 2366249253d4..9f27150442cf 100644
--- a/resources/src/mediawiki.special.userlogin.common.styles/userlogin.css
+++ b/resources/src/mediawiki.special.userlogin.common.styles/userlogin.css
@@ -39,6 +39,8 @@ section.mw-form-header {
 	margin-top: 6px;
 }
 
+/* FIXME: These should be namespaced to mw-ext-confirmedit-fancycaptcha-, and really shouldn't be in core at all */
+/* stylelint-disable-next-line selector-class-pattern */
 .fancycaptcha-captcha-container {
 	background-color: #f8f9fa;
 	margin-bottom: 15px;
@@ -54,6 +56,7 @@ section.mw-form-header {
 }
 
 /* Put a border around the fancycaptcha-image-container. */
+/* stylelint-disable-next-line selector-class-pattern */
 .fancycaptcha-captcha-and-reload {
 	border: 1px solid #c8ccd1;
 	border-radius: 2px 2px 0 0;
@@ -63,6 +66,7 @@ section.mw-form-header {
 	background-color: #fff;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .fancycaptcha-captcha-container .mw-ui-input {
 	margin-top: -1px;
 	border-color: #c8ccd1;
@@ -70,6 +74,7 @@ section.mw-form-header {
 }
 
 /* Make the fancycaptcha-image-container full-width within its parent. */
+/* stylelint-disable-next-line selector-class-pattern */
 .fancycaptcha-image-container {
 	width: 100%;
 }
diff --git a/resources/src/mediawiki.special.userlogin.signup.styles/signup.css b/resources/src/mediawiki.special.userlogin.signup.styles/signup.css
index 3cfa5a8c4499..d8b773c5ff1c 100644
--- a/resources/src/mediawiki.special.userlogin.signup.styles/signup.css
+++ b/resources/src/mediawiki.special.userlogin.signup.styles/signup.css
@@ -23,16 +23,19 @@
 	margin-bottom: 30px;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .mw-number-text.icon-edits {
 	/* @embed */
 	background: url( images/icon-edits.png ) no-repeat left center;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .mw-number-text.icon-pages {
 	/* @embed */
 	background: url( images/icon-pages.png ) no-repeat left center;
 }
 
+/* stylelint-disable-next-line selector-class-pattern */
 .mw-number-text.icon-contributors {
 	/* @embed */
 	background: url( images/icon-contributors.png ) no-repeat left center;
diff --git a/resources/src/mediawiki.special/movePage.css b/resources/src/mediawiki.special/movePage.css
index 9428fedc96d7..25113ea4b98c 100644
--- a/resources/src/mediawiki.special/movePage.css
+++ b/resources/src/mediawiki.special/movePage.css
@@ -2,6 +2,7 @@
  * Styles for Special:MovePage
  */
 
+/* stylelint-disable-next-line selector-class-pattern */
 .movepage-wrapper {
 	width: 50em;
 }
diff --git a/resources/src/mediawiki.special/pagesWithProp.css b/resources/src/mediawiki.special/pagesWithProp.css
index 7240bd466e6d..b0cc9321b433 100644
--- a/resources/src/mediawiki.special/pagesWithProp.css
+++ b/resources/src/mediawiki.special/pagesWithProp.css
@@ -3,6 +3,7 @@
  */
 
 /* Distinguish actual data from information about it being hidden visually. */
+/* stylelint-disable-next-line selector-class-pattern */
 .prop-value-hidden {
 	font-style: italic;
 }
diff --git a/resources/src/mediawiki.special/special.less b/resources/src/mediawiki.special/special.less
index 3798f1e04c95..3f76cf068aa4 100644
--- a/resources/src/mediawiki.special/special.less
+++ b/resources/src/mediawiki.special/special.less
@@ -3,6 +3,8 @@
  */
 @import 'mediawiki.mixins';
 
+/* stylelint-disable selector-class-pattern */
+
 /* Special:AllMessages */
 /* Visually hide repeating text, but leave in for better form navigation on screen readers */
 .mw-special-Allmessages .mw-htmlform-ooui .oo-ui-fieldsetLayout:first-child .oo-ui-fieldsetLayout-header {
diff --git a/resources/src/mediawiki.toc.styles/common.css b/resources/src/mediawiki.toc.styles/common.css
index 31a88269e337..d89cc2a974fb 100644
--- a/resources/src/mediawiki.toc.styles/common.css
+++ b/resources/src/mediawiki.toc.styles/common.css
@@ -1,6 +1,7 @@
 /* This style is loaded on all media. */
 
 /* Hide the content of the TOC when the checkbox is checked. */
+/* stylelint-disable-next-line selector-class-pattern */
 .toctogglecheckbox:checked ~ ul {
 	display: none;
 }
diff --git a/resources/src/mediawiki.toc.styles/print.css b/resources/src/mediawiki.toc.styles/print.css
index e905dbe72e59..2081d3554373 100644
--- a/resources/src/mediawiki.toc.styles/print.css
+++ b/resources/src/mediawiki.toc.styles/print.css
@@ -1,4 +1,5 @@
 /* Hide the complete TOC on print when the TOC is hidden. */
+/* stylelint-disable-next-line selector-class-pattern */
 .toctogglecheckbox:checked + .toctitle {
 	display: none;
 }
diff --git a/resources/src/mediawiki.toc.styles/screen.less b/resources/src/mediawiki.toc.styles/screen.less
index ff41b5e6bf51..7d7727c61f94 100644
--- a/resources/src/mediawiki.toc.styles/screen.less
+++ b/resources/src/mediawiki.toc.styles/screen.less
@@ -1,5 +1,7 @@
 /* This style adds a toggle button with internationalized message for the TOC. */
 
+/* stylelint-disable selector-class-pattern */
+
 /* When the browser supports :checked then overwrite the style="display:none" and make the */
 /* checkbox invisible on another way to allow to focus the checkbox with keyboard. */
 :not( :checked ) > .toctogglecheckbox {
diff --git a/resources/src/mediawiki.ui/components/buttons.less b/resources/src/mediawiki.ui/components/buttons.less
index 3490ebc1df9f..a85ecd7e2315 100644
--- a/resources/src/mediawiki.ui/components/buttons.less
+++ b/resources/src/mediawiki.ui/components/buttons.less
@@ -1,6 +1,8 @@
 @import 'mediawiki.mixins';
 @import 'mediawiki.ui/variables';
 
+/* stylelint-disable selector-class-pattern */
+
 // Buttons
 // Helper mixins
 // Primary buttons mixin
diff --git a/resources/src/mediawiki.ui/components/forms.less b/resources/src/mediawiki.ui/components/forms.less
index 5fa8e5a3a2b6..d08fff53fe37 100644
--- a/resources/src/mediawiki.ui/components/forms.less
+++ b/resources/src/mediawiki.ui/components/forms.less
@@ -3,6 +3,8 @@
 @import 'mediawiki.mixins';
 @import 'mediawiki.ui/variables';
 
+/* stylelint-disable selector-class-pattern */
+
 // --------------------------------------------------------------------------
 // Layouts
 // --------------------------------------------------------------------------