diff --git a/src/corePlugins.js b/src/corePlugins.js
index 551b0641e173..df52c1d9c4c0 100644
--- a/src/corePlugins.js
+++ b/src/corePlugins.js
@@ -2932,6 +2932,48 @@ export let corePlugins = {
     { filterDefault: true }
   ),
   willChange: createUtilityPlugin('willChange', [['will-change', ['will-change']]]),
+  contain: ({ addDefaults, addUtilities }) => {
+    let cssContainValue =
+      'var(--tw-contain-size) var(--tw-contain-layout) var(--tw-contain-paint) var(--tw-contain-style)'
+
+    addDefaults('contain', {
+      '--tw-contain-size': ' ',
+      '--tw-contain-layout': ' ',
+      '--tw-contain-paint': ' ',
+      '--tw-contain-style': ' ',
+    })
+
+    addUtilities({
+      '.contain-none': { contain: 'none' },
+      '.contain-content': { contain: 'content' },
+      '.contain-strict': { contain: 'strict' },
+      '.contain-size': {
+        '@defaults contain': {},
+        '--tw-contain-size': 'size',
+        contain: cssContainValue,
+      },
+      '.contain-inline-size': {
+        '@defaults contain': {},
+        '--tw-contain-size': 'inline-size',
+        contain: cssContainValue,
+      },
+      '.contain-layout': {
+        '@defaults contain': {},
+        '--tw-contain-layout': 'layout',
+        contain: cssContainValue,
+      },
+      '.contain-paint': {
+        '@defaults contain': {},
+        '--tw-contain-paint': 'paint',
+        contain: cssContainValue,
+      },
+      '.contain-style': {
+        '@defaults contain': {},
+        '--tw-contain-style': 'style',
+        contain: cssContainValue,
+      },
+    })
+  },
   content: createUtilityPlugin('content', [
     ['content', ['--tw-content', ['content', 'var(--tw-content)']]],
   ]),
diff --git a/tests/basic-usage.oxide.test.css b/tests/basic-usage.oxide.test.css
index 2c102b7a35e5..2419d6f8e18e 100644
--- a/tests/basic-usage.oxide.test.css
+++ b/tests/basic-usage.oxide.test.css
@@ -49,6 +49,10 @@
   --tw-backdrop-opacity: ;
   --tw-backdrop-saturate: ;
   --tw-backdrop-sepia: ;
+  --tw-contain-size: ;
+  --tw-contain-layout: ;
+  --tw-contain-paint: ;
+  --tw-contain-style: ;
 }
 .container {
   width: 100%;
@@ -768,7 +772,7 @@
 }
 .font-sans {
   font-family: ui-sans-serif, system-ui, sans-serif, Apple Color Emoji, Segoe UI Emoji,
-     Segoe UI Symbol, Noto Color Emoji;
+    Segoe UI Symbol, Noto Color Emoji;
 }
 .text-2xl {
   font-size: 1.5rem;
diff --git a/tests/basic-usage.test.css b/tests/basic-usage.test.css
index 17600764a711..49107dd91db7 100644
--- a/tests/basic-usage.test.css
+++ b/tests/basic-usage.test.css
@@ -49,6 +49,10 @@
   --tw-backdrop-opacity: ;
   --tw-backdrop-saturate: ;
   --tw-backdrop-sepia: ;
+  --tw-contain-size: ;
+  --tw-contain-layout: ;
+  --tw-contain-paint: ;
+  --tw-contain-style: ;
 }
 .container {
   width: 100%;
@@ -786,7 +790,7 @@
 }
 .font-sans {
   font-family: ui-sans-serif, system-ui, sans-serif, Apple Color Emoji, Segoe UI Emoji,
-     Segoe UI Symbol, Noto Color Emoji;
+    Segoe UI Symbol, Noto Color Emoji;
 }
 .text-2xl {
   font-size: 1.5rem;
diff --git a/tests/plugins/__snapshots__/contain.test.js.snap b/tests/plugins/__snapshots__/contain.test.js.snap
new file mode 100644
index 000000000000..15354b8a7390
--- /dev/null
+++ b/tests/plugins/__snapshots__/contain.test.js.snap
@@ -0,0 +1,56 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`should test the 'contain' plugin 1`] = `
+"
+*, :before, :after {
+  --tw-contain-size: ;
+  --tw-contain-layout: ;
+  --tw-contain-paint: ;
+  --tw-contain-style: ;
+}
+
+::backdrop {
+  --tw-contain-size: ;
+  --tw-contain-layout: ;
+  --tw-contain-paint: ;
+  --tw-contain-style: ;
+}
+
+.contain-none {
+  contain: none;
+}
+
+.contain-content {
+  contain: content;
+}
+
+.contain-strict {
+  contain: strict;
+}
+
+.contain-size {
+  --tw-contain-size: size;
+  contain: var(--tw-contain-size) var(--tw-contain-layout) var(--tw-contain-paint) var(--tw-contain-style);
+}
+
+.contain-inline-size {
+  --tw-contain-size: inline-size;
+  contain: var(--tw-contain-size) var(--tw-contain-layout) var(--tw-contain-paint) var(--tw-contain-style);
+}
+
+.contain-layout {
+  --tw-contain-layout: layout;
+  contain: var(--tw-contain-size) var(--tw-contain-layout) var(--tw-contain-paint) var(--tw-contain-style);
+}
+
+.contain-paint {
+  --tw-contain-paint: paint;
+  contain: var(--tw-contain-size) var(--tw-contain-layout) var(--tw-contain-paint) var(--tw-contain-style);
+}
+
+.contain-style {
+  --tw-contain-style: style;
+  contain: var(--tw-contain-size) var(--tw-contain-layout) var(--tw-contain-paint) var(--tw-contain-style);
+}
+"
+`;
diff --git a/tests/plugins/__snapshots__/mixBlendMode.test.js.snap b/tests/plugins/__snapshots__/mixBlendMode.test.js.snap
deleted file mode 100644
index 786d86ec62fe..000000000000
--- a/tests/plugins/__snapshots__/mixBlendMode.test.js.snap
+++ /dev/null
@@ -1,77 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`should test the 'mixBlendMode' plugin 1`] = `
-"
-.mix-blend-normal {
-  mix-blend-mode: normal;
-}
-
-.mix-blend-multiply {
-  mix-blend-mode: multiply;
-}
-
-.mix-blend-screen {
-  mix-blend-mode: screen;
-}
-
-.mix-blend-overlay {
-  mix-blend-mode: overlay;
-}
-
-.mix-blend-darken {
-  mix-blend-mode: darken;
-}
-
-.mix-blend-lighten {
-  mix-blend-mode: lighten;
-}
-
-.mix-blend-color-dodge {
-  mix-blend-mode: color-dodge;
-}
-
-.mix-blend-color-burn {
-  mix-blend-mode: color-burn;
-}
-
-.mix-blend-hard-light {
-  mix-blend-mode: hard-light;
-}
-
-.mix-blend-soft-light {
-  mix-blend-mode: soft-light;
-}
-
-.mix-blend-difference {
-  mix-blend-mode: difference;
-}
-
-.mix-blend-exclusion {
-  mix-blend-mode: exclusion;
-}
-
-.mix-blend-hue {
-  mix-blend-mode: hue;
-}
-
-.mix-blend-saturation {
-  mix-blend-mode: saturation;
-}
-
-.mix-blend-color {
-  mix-blend-mode: color;
-}
-
-.mix-blend-luminosity {
-  mix-blend-mode: luminosity;
-}
-
-.mix-blend-plus-darker {
-  mix-blend-mode: plus-darker;
-}
-
-.mix-blend-plus-lighter {
-  mix-blend-mode: plus-lighter;
-}
-"
-`;
diff --git a/tests/source-maps.test.js b/tests/source-maps.test.js
index 686ec14eae59..08b60c9f52a1 100644
--- a/tests/source-maps.test.js
+++ b/tests/source-maps.test.js
@@ -351,57 +351,65 @@ crosscheck(({ stable, oxide }) => {
       '2:6-20 -> 433:2-25',
       '2:6-20 -> 434:2-26',
       '2:6-20 -> 435:2-27',
-      '2:6 -> 436:2',
-      '2:20 -> 437:0',
-      '2:6 -> 439:0',
-      '2:6-20 -> 440:2-26',
-      '2:6-20 -> 441:2-26',
-      '2:6-20 -> 442:2-21',
-      '2:6-20 -> 443:2-21',
-      '2:6-20 -> 444:2-16',
-      '2:6-20 -> 445:2-16',
-      '2:6-20 -> 446:2-16',
-      '2:6-20 -> 447:2-17',
-      '2:6-20 -> 448:2-17',
-      '2:6-20 -> 449:2-15',
-      '2:6-20 -> 450:2-15',
-      '2:6-20 -> 451:2-20',
-      '2:6-20 -> 452:2-40',
-      '2:6-20 -> 453:2-32',
-      '2:6-20 -> 454:2-31',
-      '2:6-20 -> 455:2-30',
-      '2:6-20 -> 456:2-17',
-      '2:6-20 -> 457:2-22',
-      '2:6-20 -> 458:2-24',
-      '2:6-20 -> 459:2-25',
-      '2:6-20 -> 460:2-26',
-      '2:6-20 -> 461:2-20',
-      '2:6-20 -> 462:2-29',
-      '2:6-20 -> 463:2-30',
-      '2:6-20 -> 464:2-40',
-      '2:6-20 -> 465:2-36',
+      '2:6-20 -> 436:2-24',
+      '2:6-20 -> 437:2-22',
+      '2:6-20 -> 438:2-24',
+      '2:6-20 -> 439:2-23',
+      '2:6 -> 440:2',
+      '2:20 -> 441:0',
+      '2:6 -> 443:0',
+      '2:6-20 -> 444:2-26',
+      '2:6-20 -> 445:2-26',
+      '2:6-20 -> 446:2-21',
+      '2:6-20 -> 447:2-21',
+      '2:6-20 -> 448:2-16',
+      '2:6-20 -> 449:2-16',
+      '2:6-20 -> 450:2-16',
+      '2:6-20 -> 451:2-17',
+      '2:6-20 -> 452:2-17',
+      '2:6-20 -> 453:2-15',
+      '2:6-20 -> 454:2-15',
+      '2:6-20 -> 455:2-20',
+      '2:6-20 -> 456:2-40',
+      '2:6-20 -> 457:2-32',
+      '2:6-20 -> 458:2-31',
+      '2:6-20 -> 459:2-30',
+      '2:6-20 -> 460:2-17',
+      '2:6-20 -> 461:2-22',
+      '2:6-20 -> 462:2-24',
+      '2:6-20 -> 463:2-25',
+      '2:6-20 -> 464:2-26',
+      '2:6-20 -> 465:2-20',
       '2:6-20 -> 466:2-29',
-      '2:6-20 -> 467:2-24',
-      '2:6-20 -> 468:2-32',
-      '2:6-20 -> 469:2-14',
-      '2:6-20 -> 470:2-20',
-      '2:6-20 -> 471:2-18',
-      '2:6-20 -> 472:2-19',
-      '2:6-20 -> 473:2-20',
-      '2:6-20 -> 474:2-16',
+      '2:6-20 -> 467:2-30',
+      '2:6-20 -> 468:2-40',
+      '2:6-20 -> 469:2-36',
+      '2:6-20 -> 470:2-29',
+      '2:6-20 -> 471:2-24',
+      '2:6-20 -> 472:2-32',
+      '2:6-20 -> 473:2-14',
+      '2:6-20 -> 474:2-20',
       '2:6-20 -> 475:2-18',
-      '2:6-20 -> 476:2-15',
-      '2:6-20 -> 477:2-21',
-      '2:6-20 -> 478:2-23',
-      '2:6-20 -> 479:2-29',
-      '2:6-20 -> 480:2-27',
-      '2:6-20 -> 481:2-28',
-      '2:6-20 -> 482:2-29',
-      '2:6-20 -> 483:2-25',
-      '2:6-20 -> 484:2-26',
-      '2:6-20 -> 485:2-27',
-      '2:6 -> 486:2',
-      '2:20 -> 487:0',
+      '2:6-20 -> 476:2-19',
+      '2:6-20 -> 477:2-20',
+      '2:6-20 -> 478:2-16',
+      '2:6-20 -> 479:2-18',
+      '2:6-20 -> 480:2-15',
+      '2:6-20 -> 481:2-21',
+      '2:6-20 -> 482:2-23',
+      '2:6-20 -> 483:2-29',
+      '2:6-20 -> 484:2-27',
+      '2:6-20 -> 485:2-28',
+      '2:6-20 -> 486:2-29',
+      '2:6-20 -> 487:2-25',
+      '2:6-20 -> 488:2-26',
+      '2:6-20 -> 489:2-27',
+      '2:6-20 -> 490:2-24',
+      '2:6-20 -> 491:2-22',
+      '2:6-20 -> 492:2-24',
+      '2:6-20 -> 493:2-23',
+      '2:6 -> 494:2',
+      '2:20 -> 495:0',
     ])
   })
 
diff --git a/tests/util/defaults.js b/tests/util/defaults.js
index bea97d338154..4d3925c2cd5a 100644
--- a/tests/util/defaults.js
+++ b/tests/util/defaults.js
@@ -58,6 +58,10 @@ export function defaults({ defaultRingColor = `#3b82f680` } = {}) {
       --tw-backdrop-opacity: ;
       --tw-backdrop-saturate: ;
       --tw-backdrop-sepia: ;
+      --tw-contain-size: ;
+      --tw-contain-layout: ;
+      --tw-contain-paint: ;
+      --tw-contain-style: ;
     }
   `
 }
diff --git a/tests/variants.oxide.test.css b/tests/variants.oxide.test.css
index c04721895c07..e35ed35ef1f2 100644
--- a/tests/variants.oxide.test.css
+++ b/tests/variants.oxide.test.css
@@ -49,6 +49,10 @@
   --tw-backdrop-opacity: ;
   --tw-backdrop-saturate: ;
   --tw-backdrop-sepia: ;
+  --tw-contain-size: ;
+  --tw-contain-layout: ;
+  --tw-contain-paint: ;
+  --tw-contain-style: ;
 }
 .first-letter\:text-2xl:first-letter {
   font-size: 1.5rem;
@@ -384,13 +388,13 @@
     background-color: #fde047;
   }
 }
-.ltr\:shadow-md:where([dir="ltr"], [dir="ltr"] *) {
+.ltr\:shadow-md:where([dir='ltr'], [dir='ltr'] *) {
   --tw-shadow: 0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;
   --tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000),
     var(--tw-shadow);
 }
-.rtl\:shadow-md:where([dir="rtl"], [dir="rtl"] *) {
+.rtl\:shadow-md:where([dir='rtl'], [dir='rtl'] *) {
   --tw-shadow: 0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;
   --tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000),
@@ -402,13 +406,15 @@
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000),
     var(--tw-shadow);
 }
-.group:disabled:focus:hover .dark\:group-disabled\:group-focus\:group-hover\:shadow-md:where(.dark, .dark *) {
+.group:disabled:focus:hover
+  .dark\:group-disabled\:group-focus\:group-hover\:shadow-md:where(.dark, .dark *) {
   --tw-shadow: 0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;
   --tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000),
     var(--tw-shadow);
 }
-.peer:disabled:focus:hover ~ .dark\:peer-disabled\:peer-focus\:peer-hover\:shadow-md:where(.dark, .dark *) {
+.peer:disabled:focus:hover
+  ~ .dark\:peer-disabled\:peer-focus\:peer-hover\:shadow-md:where(.dark, .dark *) {
   --tw-shadow: 0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;
   --tw-shadow-colored: 0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);
   box-shadow: var(--tw-ring-offset-shadow, 0 0 #0000), var(--tw-ring-shadow, 0 0 #0000),
diff --git a/tests/variants.test.css b/tests/variants.test.css
index 95404e1cbe39..0b27b228141c 100644
--- a/tests/variants.test.css
+++ b/tests/variants.test.css
@@ -1,6 +1,58 @@
 *,
 :before,
-:after,
+:after {
+  --tw-border-spacing-x: 0;
+  --tw-border-spacing-y: 0;
+  --tw-translate-x: 0;
+  --tw-translate-y: 0;
+  --tw-rotate: 0;
+  --tw-skew-x: 0;
+  --tw-skew-y: 0;
+  --tw-scale-x: 1;
+  --tw-scale-y: 1;
+  --tw-pan-x: ;
+  --tw-pan-y: ;
+  --tw-pinch-zoom: ;
+  --tw-scroll-snap-strictness: proximity;
+  --tw-gradient-from-position: ;
+  --tw-gradient-via-position: ;
+  --tw-gradient-to-position: ;
+  --tw-ordinal: ;
+  --tw-slashed-zero: ;
+  --tw-numeric-figure: ;
+  --tw-numeric-spacing: ;
+  --tw-numeric-fraction: ;
+  --tw-ring-inset: ;
+  --tw-ring-offset-width: 0px;
+  --tw-ring-offset-color: #fff;
+  --tw-ring-color: #3b82f680;
+  --tw-ring-offset-shadow: 0 0 #0000;
+  --tw-ring-shadow: 0 0 #0000;
+  --tw-shadow: 0 0 #0000;
+  --tw-shadow-colored: 0 0 #0000;
+  --tw-blur: ;
+  --tw-brightness: ;
+  --tw-contrast: ;
+  --tw-grayscale: ;
+  --tw-hue-rotate: ;
+  --tw-invert: ;
+  --tw-saturate: ;
+  --tw-sepia: ;
+  --tw-drop-shadow: ;
+  --tw-backdrop-blur: ;
+  --tw-backdrop-brightness: ;
+  --tw-backdrop-contrast: ;
+  --tw-backdrop-grayscale: ;
+  --tw-backdrop-hue-rotate: ;
+  --tw-backdrop-invert: ;
+  --tw-backdrop-opacity: ;
+  --tw-backdrop-saturate: ;
+  --tw-backdrop-sepia: ;
+  --tw-contain-size: ;
+  --tw-contain-layout: ;
+  --tw-contain-paint: ;
+  --tw-contain-style: ;
+}
 ::backdrop {
   --tw-border-spacing-x: 0;
   --tw-border-spacing-y: 0;
@@ -49,6 +101,10 @@
   --tw-backdrop-opacity: ;
   --tw-backdrop-saturate: ;
   --tw-backdrop-sepia: ;
+  --tw-contain-size: ;
+  --tw-contain-layout: ;
+  --tw-contain-paint: ;
+  --tw-contain-style: ;
 }
 .first-letter\:text-2xl:first-letter {
   font-size: 1.5rem;