diff --git a/extension.json b/extension.json
index 721dc6178a..551f59f331 100644
--- a/extension.json
+++ b/extension.json
@@ -1578,12 +1578,10 @@
 					"modules/ve-mw/themes/wikimediaui.css"
 				],
 				"vector": [
-					"modules/ve-mw/themes/wikimediaui.css",
-					"modules/ve-mw/ui/styles/tools/ve.ui.MWTargetWidget-vector.less"
+					"modules/ve-mw/themes/wikimediaui.css"
 				],
 				"vector-2022": [
-					"modules/ve-mw/themes/wikimediaui.css",
-					"modules/ve-mw/ui/styles/tools/ve.ui.MWTargetWidget-vector.less"
+					"modules/ve-mw/themes/wikimediaui.css"
 				],
 				"monobook": [
 					"modules/ve-mw/themes/apex.css"
diff --git a/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-monobook.less b/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-monobook.less
index b2da521b8b..ba890745ed 100644
--- a/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-monobook.less
+++ b/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-monobook.less
@@ -5,11 +5,6 @@
  * @license The MIT License (MIT); see LICENSE.txt
  */
 
-/* Global overlay is outside the #globalWrapper so apply the font size fix */
-.ve-ui-overlay-global {
-	font-size: 1.28em; /* 0.8em / x-small */
-}
-
 /* stylelint-disable-next-line selector-class-pattern */
 .mw-body a.external.ve-ce-linkAnnotation.ve-ce-annotation-active {
 	/* Monobook sets a background:url(); rule which overrides the colour. TODO: Fix upstream */
diff --git a/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-vector.less b/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-vector.less
index 7b07319b13..5cdae1ba92 100644
--- a/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-vector.less
+++ b/modules/ve-mw/init/styles/ve.init.mw.DesktopTarget-vector.less
@@ -15,11 +15,6 @@
 	}
 }
 
-.ve-ui-overlay-global {
-	/* Same as main content font-size in Vector */
-	font-size: 0.875em;
-}
-
 /* Slug animation needs more specific rules and skin-specific target margins */
 .mw-body-content p.ve-ce-branchNode-newSlug {
 	margin: -0.3em 0 -0.1em 0;
@@ -36,10 +31,3 @@
 		color: #72777d;
 	}
 }
-
-.ve-ui-overlay .mw-body-content {
-	/* Fix font-size for surfaces inside UI overlays */
-	/* Increase specificity to deal with :not selector hack in core's typography.less */
-	/* stylelint-disable-next-line declaration-no-important */
-	font-size: 1em !important;
-}
diff --git a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
index bc03f9f318..bc395229c3 100644
--- a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
+++ b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
@@ -352,7 +352,7 @@ ve.init.mw.DesktopArticleTarget.prototype.loadSuccess = function () {
 		$( '#ca-edit' ).removeClass( 'visualeditor-showtabdialog' );
 		// Set up a temporary window manager
 		var windowManager = new OO.ui.WindowManager();
-		$( document.body ).append( windowManager.$element );
+		$( OO.ui.getTeleportTarget() ).append( windowManager.$element );
 		this.editingTabDialog = new mw.libs.ve.EditingTabDialog();
 		windowManager.addWindows( [ this.editingTabDialog ] );
 		windowManager.openWindow( this.editingTabDialog )
diff --git a/modules/ve-mw/preinit/ve.init.mw.DesktopArticleTarget.init.js b/modules/ve-mw/preinit/ve.init.mw.DesktopArticleTarget.init.js
index d2cc1c89e0..313a5a3a42 100644
--- a/modules/ve-mw/preinit/ve.init.mw.DesktopArticleTarget.init.js
+++ b/modules/ve-mw/preinit/ve.init.mw.DesktopArticleTarget.init.js
@@ -1490,7 +1490,7 @@
 							$( '#ca-edit' ).removeClass( 'visualeditor-showtabdialog' );
 							// Set up a temporary window manager
 							windowManager = new OO.ui.WindowManager();
-							$( document.body ).append( windowManager.$element );
+							$( OO.ui.getTeleportTarget() ).append( windowManager.$element );
 							editingTabDialog = new mw.libs.ve.EditingTabDialog();
 							windowManager.addWindows( [ editingTabDialog ] );
 							windowManager.openWindow( editingTabDialog )
@@ -1541,7 +1541,7 @@
 				}
 				windowManager = new OO.ui.WindowManager();
 				welcomeDialog = new mw.libs.ve.WelcomeDialog();
-				$( document.body ).append( windowManager.$element );
+				$( OO.ui.getTeleportTarget() ).append( windowManager.$element );
 				windowManager.addWindows( [ welcomeDialog ] );
 				windowManager.openWindow(
 					welcomeDialog,
diff --git a/modules/ve-mw/ui/dialogs/ve.ui.MWConfirmationDialog.js b/modules/ve-mw/ui/dialogs/ve.ui.MWConfirmationDialog.js
index c6477c10e0..6921f2e662 100644
--- a/modules/ve-mw/ui/dialogs/ve.ui.MWConfirmationDialog.js
+++ b/modules/ve-mw/ui/dialogs/ve.ui.MWConfirmationDialog.js
@@ -41,7 +41,7 @@ ve.ui.MWConfirmationDialog.static.size = 'small';
  */
 ve.ui.MWConfirmationDialog.static.confirm = function ( prompt, successCmd ) {
 	var windowManager = new OO.ui.WindowManager();
-	$( document.body ).append( windowManager.$element );
+	$( OO.ui.getTeleportTarget() ).append( windowManager.$element );
 	var dialog = new ve.ui.MWConfirmationDialog();
 	windowManager.addWindows( [ dialog ] );
 	windowManager.openWindow( dialog, {
diff --git a/modules/ve-mw/ui/dialogs/ve.ui.MWSaveDialog.js b/modules/ve-mw/ui/dialogs/ve.ui.MWSaveDialog.js
index 5d2f2bc90d..a5005e7938 100644
--- a/modules/ve-mw/ui/dialogs/ve.ui.MWSaveDialog.js
+++ b/modules/ve-mw/ui/dialogs/ve.ui.MWSaveDialog.js
@@ -137,8 +137,6 @@ ve.ui.MWSaveDialog.prototype.setDiffAndReview = function ( wikitextDiffPromise,
 		diffElement.$document.addClass( [
 			'mw-body-content',
 			'mw-parser-output',
-			// HACK: T287733
-			mw.config.get( 'skin' ) === 'vector' || mw.config.get( 'skin' ) === 'vector-2022' ? 'vector-body' : null,
 			'mw-content-' + visualDiff.newDoc.getDir()
 		] );
 		ve.targetLinksToNewWindow( diffElement.$document[ 0 ] );
@@ -645,9 +643,7 @@ ve.ui.MWSaveDialog.prototype.initialize = function () {
 	this.$previewHeading = $( '<h1>' ).addClass( 'firstHeading' );
 	this.$previewViewer = $( '<div>' ).addClass( [
 		'mw-body-content',
-		'mw-parser-output',
-		// HACK: T287733
-		mw.config.get( 'skin' ) === 'vector' || mw.config.get( 'skin' ) === 'vector-2022' ? 'vector-body' : null
+		'mw-parser-output'
 	] );
 	this.previewPanel.$element
 		// Make focusable for keyboard accessible scrolling
diff --git a/modules/ve-mw/ui/dialogs/ve.ui.MWTemplateDialog.js b/modules/ve-mw/ui/dialogs/ve.ui.MWTemplateDialog.js
index f84791b8ac..298ec44940 100644
--- a/modules/ve-mw/ui/dialogs/ve.ui.MWTemplateDialog.js
+++ b/modules/ve-mw/ui/dialogs/ve.ui.MWTemplateDialog.js
@@ -37,7 +37,7 @@ ve.ui.MWTemplateDialog = function VeUiMWTemplateDialog( config ) {
 	this.preventReselection = false;
 
 	this.confirmDialogs = new ve.ui.WindowManager( { factory: ve.ui.windowFactory, isolate: true } );
-	$( document.body ).append( this.confirmDialogs.$element );
+	$( OO.ui.getTeleportTarget() ).append( this.confirmDialogs.$element );
 };
 
 /* Inheritance */
diff --git a/modules/ve-mw/ui/elements/ve.ui.MWFloatingHelpElement.js b/modules/ve-mw/ui/elements/ve.ui.MWFloatingHelpElement.js
index 3093ec1d4b..f285a65c2a 100644
--- a/modules/ve-mw/ui/elements/ve.ui.MWFloatingHelpElement.js
+++ b/modules/ve-mw/ui/elements/ve.ui.MWFloatingHelpElement.js
@@ -39,7 +39,7 @@ ve.ui.MWFloatingHelpElement = function VeUiMWFloatingHelpElement( config ) {
 	this.windowManager.$element.addClass( 've-ui-mwFloatingHelpElement-windowManager' );
 
 	if ( OO.ui.isMobile() ) {
-		$( document.body ).append( this.windowManager.$element );
+		$( OO.ui.getTeleportTarget() ).append( this.windowManager.$element );
 	} else {
 		this.$element.append( this.windowManager.$element );
 	}
diff --git a/modules/ve-mw/ui/pages/ve.ui.MWTemplatesUsedPage.js b/modules/ve-mw/ui/pages/ve.ui.MWTemplatesUsedPage.js
index 59b477ca30..42124f2995 100644
--- a/modules/ve-mw/ui/pages/ve.ui.MWTemplatesUsedPage.js
+++ b/modules/ve-mw/ui/pages/ve.ui.MWTemplatesUsedPage.js
@@ -30,9 +30,7 @@ ve.ui.MWTemplatesUsedPage = function VeUiMWTemplatesUsedPage() {
 	} );
 
 	this.templatesUsedFieldset.$group.addClass( [
-		'mw-body-content',
-		// HACK: T287733
-		mw.config.get( 'skin' ) === 'vector' || mw.config.get( 'skin' ) === 'vector-2022' ? 'vector-body' : null
+		'mw-body-content'
 	] );
 
 	target.getContentApi().get( {
diff --git a/modules/ve-mw/ui/styles/tools/ve.ui.MWTargetWidget-vector.less b/modules/ve-mw/ui/styles/tools/ve.ui.MWTargetWidget-vector.less
deleted file mode 100644
index 24c4645e90..0000000000
--- a/modules/ve-mw/ui/styles/tools/ve.ui.MWTargetWidget-vector.less
+++ /dev/null
@@ -1,18 +0,0 @@
-/*!
- * VisualEditor MediaWiki Vector-specific MWTargetWidget styles.
- *
- * @copyright 2011-2022 VisualEditor Team and others; see AUTHORS.txt
- * @license The MIT License (MIT); see LICENSE.txt
- */
-
-/* stylelint-disable-next-line selector-class-pattern */
-.ve-ui-mwTargetWidget .ve-ui-surface.vector-body {
-	// Suppress the stacking context usually established by .vector-body (T314230).
-	// We wouldn't need to do this if the context menus and inspectors were appended to an overlay (T266521).
-	z-index: auto;
-}
-
-.ve-ui-mwTargetWidget > .ve-init-target > .mw-body-content {
-	// Remove top margin used by Vector 2022 in main content
-	margin-top: 0;
-}
diff --git a/modules/ve-mw/ui/widgets/ve.ui.MWTargetWidget.js b/modules/ve-mw/ui/widgets/ve.ui.MWTargetWidget.js
index 164100560e..c03a1cca14 100644
--- a/modules/ve-mw/ui/widgets/ve.ui.MWTargetWidget.js
+++ b/modules/ve-mw/ui/widgets/ve.ui.MWTargetWidget.js
@@ -19,13 +19,6 @@
 ve.ui.MWTargetWidget = function VeUiMWTargetWidget( config ) {
 	this.surfaceClasses = ve.copy( config.surfaceClasses ) || [];
 
-	// HACK: T287733
-	// This assumes the target widget is being shown outside of vector-body, otherwise this
-	// will apply the class a second time and cause problems.
-	if ( mw.config.get( 'skin' ) === 'vector' || mw.config.get( 'skin' ) === 'vector-2022' ) {
-		this.surfaceClasses.push( 'vector-body' );
-	}
-
 	// Parent constructor
 	ve.ui.MWTargetWidget.super.apply( this, arguments );