diff --git a/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSS.kt b/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSS.kt
index be350d3c22..9902fb71c1 100644
--- a/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSS.kt
+++ b/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSS.kt
@@ -343,51 +343,51 @@ external class StylePropertyMap : StylePropertyMapReadOnly {
 inline fun Element.computedStyleMap(): StylePropertyMapReadOnly =
     this.asDynamic().computedStyleMap().unsafeCast<StylePropertyMapReadOnly>()
 
-external class CSS {
-    companion object {
-        fun number(value: Number): CSSUnitValue
-        fun percent(value: Number): CSSpercentValue
-
-        // <length>
-        fun em(value: Number): CSSemValue
-        fun ex(value: Number): CSSexValue
-        fun ch(value: Number): CSSchValue
-        fun rem(value: Number): CSSremValue
-        fun vw(value: Number): CSSvwValue
-        fun vh(value: Number): CSSvhValue
-        fun vmin(value: Number): CSSvminValue
-        fun vmax(value: Number): CSSvmaxValue
-        fun cm(value: Number): CSScmValue
-        fun mm(value: Number): CSSmmValue
-        fun Q(value: Number): CSSQValue
-
-        fun pt(value: Number): CSSptValue
-        fun pc(value: Number): CSSpcValue
-        fun px(value: Number): CSSpxValue
-
-        // <angle>
-        fun deg(value: Number): CSSdegValue
-        fun grad(value: Number): CSSgradValue
-        fun rad(value: Number): CSSradValue
-        fun turn(value: Number): CSSturnValue
-
-        // <time>
-        fun s(value: Number): CSSsValue
-        fun ms(value: Number): CSSmsValue
-
-        // <frequency>
-        fun Hz(value: Number): CSSHzValue
-        fun kHz(value: Number): CSSkHzValue
-
-        // <resolution>
-        fun dpi(value: Number): CSSdpiValue
-        fun dpcm(value: Number): CSSdpcmValue
-        fun dppx(value: Number): CSSdppxValue
-
-        // <flex>
-        fun fr(value: Number): CSSfrValue
-    }
-}
+//external class CSS {
+//    companion object {
+//        fun number(value: Number): CSSUnitValue
+//        fun percent(value: Number): CSSpercentValue
+//
+//        // <length>
+//        fun em(value: Number): CSSemValue
+//        fun ex(value: Number): CSSexValue
+//        fun ch(value: Number): CSSchValue
+//        fun rem(value: Number): CSSremValue
+//        fun vw(value: Number): CSSvwValue
+//        fun vh(value: Number): CSSvhValue
+//        fun vmin(value: Number): CSSvminValue
+//        fun vmax(value: Number): CSSvmaxValue
+//        fun cm(value: Number): CSScmValue
+//        fun mm(value: Number): CSSmmValue
+//        fun Q(value: Number): CSSQValue
+//
+//        fun pt(value: Number): CSSptValue
+//        fun pc(value: Number): CSSpcValue
+//        fun px(value: Number): CSSpxValue
+//
+//        // <angle>
+//        fun deg(value: Number): CSSdegValue
+//        fun grad(value: Number): CSSgradValue
+//        fun rad(value: Number): CSSradValue
+//        fun turn(value: Number): CSSturnValue
+//
+//        // <time>
+//        fun s(value: Number): CSSsValue
+//        fun ms(value: Number): CSSmsValue
+//
+//        // <frequency>
+//        fun Hz(value: Number): CSSHzValue
+//        fun kHz(value: Number): CSSkHzValue
+//
+//        // <resolution>
+//        fun dpi(value: Number): CSSdpiValue
+//        fun dpcm(value: Number): CSSdpcmValue
+//        fun dppx(value: Number): CSSdppxValue
+//
+//        // <flex>
+//        fun fr(value: Number): CSSfrValue
+//    }
+//}
 
 @Suppress("unused")
 val cssTypedOMPolyfill = CSSTypedOMPolyfill.default(window)
diff --git a/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSSUnits.kt b/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSSUnits.kt
index 9d639f4a49..66e4f8102e 100644
--- a/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSSUnits.kt
+++ b/web/core/src/jsMain/kotlin/androidx/compose/web/css/CSSUnits.kt
@@ -8,167 +8,167 @@ interface CSSFrequencyValue
 interface CSSResolutionValue
 interface CSSFlexValue
 
-class CSSpercentValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSpercentValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "percent"
 }
 
-class CSSemValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSemValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "em"
 }
 
-class CSSexValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSexValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "ex"
 }
 
-class CSSchValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSchValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "ch"
 }
 
-class CSSicValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSicValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "ic"
 }
 
-class CSSremValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSremValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "rem"
 }
 
-class CSSlhValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSlhValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "lh"
 }
 
-class CSSrlhValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSrlhValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "rlh"
 }
 
-class CSSvwValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSvwValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "vw"
 }
 
-class CSSvhValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSvhValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "vh"
 }
 
-class CSSviValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSviValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "vi"
 }
 
-class CSSvbValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSvbValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "vb"
 }
 
-class CSSvminValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSvminValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "vmin"
 }
 
-class CSSvmaxValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSvmaxValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "vmax"
 }
 
-class CSScmValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSScmValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "cm"
 }
 
-class CSSmmValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSmmValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "mm"
 }
 
-class CSSQValue(override val value: Number) : CSSUnitValue, CSSRelValue {
+value class CSSQValue(override val value: Number) : CSSUnitValue, CSSRelValue {
     override val unit: String
         get() = "q"
 }
 
-class CSSptValue(override val value: Number) : CSSUnitValue, CSSAbsValue {
+value class CSSptValue(override val value: Number) : CSSUnitValue, CSSAbsValue {
     override val unit: String
         get() = "pt"
 }
 
-class CSSpcValue(override val value: Number) : CSSUnitValue, CSSAbsValue {
+value class CSSpcValue(override val value: Number) : CSSUnitValue, CSSAbsValue {
     override val unit: String
         get() = "pc"
 }
 
-class CSSpxValue(override val value: Number) : CSSUnitValue, CSSAbsValue {
+value class CSSpxValue(override val value: Number) : CSSUnitValue, CSSAbsValue {
     override val unit: String
         get() = "px"
 }
 
-class CSSdegValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
+value class CSSdegValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
     override val unit: String
         get() = "deg"
 }
 
-class CSSgradValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
+value class CSSgradValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
     override val unit: String
         get() = "grad"
 }
 
-class CSSradValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
+value class CSSradValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
     override val unit: String
         get() = "rad"
 }
 
-class CSSturnValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
+value class CSSturnValue(override val value: Number) : CSSUnitValue, CSSAngleValue {
     override val unit: String
         get() = "turn"
 }
 
-class CSSsValue(override val value: Number) : CSSUnitValue, CSSTimeValue {
+value class CSSsValue(override val value: Number) : CSSUnitValue, CSSTimeValue {
     override val unit: String
         get() = "s"
 }
 
-class CSSmsValue(override val value: Number) : CSSUnitValue, CSSTimeValue {
+value class CSSmsValue(override val value: Number) : CSSUnitValue, CSSTimeValue {
     override val unit: String
         get() = "ms"
 }
 
-class CSSHzValue(override val value: Number) : CSSUnitValue, CSSFrequencyValue {
+value class CSSHzValue(override val value: Number) : CSSUnitValue, CSSFrequencyValue {
     override val unit: String
         get() = "hz"
 }
 
-class CSSkHzValue(override val value: Number) : CSSUnitValue, CSSFrequencyValue {
+value class CSSkHzValue(override val value: Number) : CSSUnitValue, CSSFrequencyValue {
     override val unit: String
         get() = "khz"
 }
 
-class CSSdpiValue(override val value: Number) : CSSUnitValue, CSSResolutionValue {
+value class CSSdpiValue(override val value: Number) : CSSUnitValue, CSSResolutionValue {
     override val unit: String
         get() = "dpi"
 }
 
-class CSSdpcmValue(override val value: Number) : CSSUnitValue, CSSResolutionValue {
+value class CSSdpcmValue(override val value: Number) : CSSUnitValue, CSSResolutionValue {
     override val unit: String
         get() = "dpcm"
 }
 
-class CSSdppxValue(override val value: Number) : CSSUnitValue, CSSResolutionValue {
+value class CSSdppxValue(override val value: Number) : CSSUnitValue, CSSResolutionValue {
     override val unit: String
         get() = "dppx"
 }
 
-class CSSfrValue(override val value: Number) : CSSUnitValue, CSSFlexValue {
+value class CSSfrValue(override val value: Number) : CSSUnitValue, CSSFlexValue {
     override val unit: String
         get() = "fr"
 }
 
-class CSSnumberValue(override val value: Number) : CSSUnitValue, CSSFlexValue {
+value class CSSnumberValue(override val value: Number) : CSSUnitValue, CSSFlexValue {
     override val unit: String
     get() = "number"
 }
diff --git a/web/core/src/jsTest/kotlin/CSSUnitApiTests.kt b/web/core/src/jsTest/kotlin/CSSUnitApiTests.kt
index ccf348d194..2f007ca7fb 100644
--- a/web/core/src/jsTest/kotlin/CSSUnitApiTests.kt
+++ b/web/core/src/jsTest/kotlin/CSSUnitApiTests.kt
@@ -5,7 +5,6 @@
 
 package org.jetbrains.compose.web.core.tests
 
-import org.jetbrains.compose.web.css.CSS
 import org.jetbrains.compose.web.css.CSSUnitValue
 import org.jetbrains.compose.web.css.CSSchValue
 import org.jetbrains.compose.web.css.CSScmValue
@@ -71,43 +70,6 @@ class CSSUnitApiTests {
         return assertStructure(otherUnit.value, otherUnit.unit, description)
     }
 
-//    @Test
-//    fun builderInvocation() {
-//        CSS.number(4).assertStructure(4, "number")
-//        CSS.percent(4).assertStructure(4, "percent")
-//
-//        CSS.em(4).assertStructure(4, "em")
-//        CSS.ch(4).assertStructure(4, "ch")
-//
-//        CSS.rem(4).assertStructure(4, "rem")
-//
-//        CSS.vw(4).assertStructure(4, "vw")
-//        CSS.vh(4).assertStructure(4, "vh")
-//
-//        CSS.vmin(4).assertStructure(4, "vmin")
-//        CSS.vmax(4).assertStructure(4, "vmax")
-//        CSS.cm(4).assertStructure(4, "cm")
-//        CSS.mm(4).assertStructure(4, "mm")
-//
-//        CSS.pt(4).assertStructure(4, "pt")
-//        CSS.pc(4).assertStructure(4, "pc")
-//        CSS.px(4).assertStructure(4, "px")
-//
-//        CSS.deg(4).assertStructure(4, "deg")
-//        CSS.grad(4).assertStructure(4, "grad")
-//        CSS.rad(4).assertStructure(4, "rad")
-//        CSS.turn(4).assertStructure(4, "turn")
-//
-//        CSS.s(4).assertStructure(4, "s")
-//        CSS.ms(4).assertStructure(4, "ms")
-//
-//        CSS.dpi(4).assertStructure(4, "dpi")
-//        CSS.dpcm(4).assertStructure(4, "dpcm")
-//        CSS.dppx(4).assertStructure(4, "dppx")
-//
-//        CSS.fr(4).assertStructure(4, "fr")
-//    }
-
     @Test
     fun postfixInvocation() {
         4.number.assertStructure(CSSnumberValue(4), "number postfix")