now project is multiplatform and correctly working

src/jsMain/kotlin/dev/inmo/jsuikit/modifiers/UIKitFlex.kt

@@ -0,0 +1,79 @@
+package dev.inmo.jsuikit.modifiers
+
+sealed class UIKitFlex(suffix: String) : UIKitModifier {
+    override val classes: Array<String> = arrayOf("uk-flex-$suffix")
+
+    object Inline : UIKitFlex("inline")
+
+    sealed class Alignment(suffix: String) : UIKitFlex(suffix) {
+
+        sealed class Horizontal(suffix: String) : Alignment(suffix) {
+
+            object Left : Horizontal("left")
+            object Center : Horizontal("center")
+            object Right : Horizontal("right")
+            object Between : Horizontal("between")
+            object Around : Horizontal("around")
+
+        }
+
+        sealed class Vertical(suffix: String) : Alignment(suffix) {
+
+            object Stretch : Vertical("stretch")
+            object Top : Vertical("top")
+            object Middle : Vertical("middle")
+            object Bottom : Vertical("bottom")
+
+        }
+
+    }
+
+    sealed class Direction(suffix: String) : UIKitFlex(suffix) {
+
+        sealed class Row(suffix: String) : Direction(suffix) {
+
+            object Reverse : Row("row-reverse")
+            companion object : Row("row")
+
+        }
+
+        sealed class Column(suffix: String) : Direction(suffix) {
+
+            object Reverse : Column("column-reverse")
+            companion object : Column("column")
+
+        }
+
+    }
+
+    sealed class Wrap(suffix: String) : UIKitFlex(suffix) {
+
+        object Reverse : Wrap("wrap-reverse")
+        object Stretch : Wrap("wrap-stretch")
+        object Between : Wrap("wrap-between")
+        object Around : Wrap("wrap-around")
+        object Top : Wrap("wrap-top")
+        object Middle : Wrap("wrap-middle")
+        object Bottom : Wrap("wrap-bottom")
+        companion object : Wrap("wrap")
+
+    }
+
+    sealed class Order(suffix: String) : UIKitFlex(suffix) {
+
+        object First : Order("first")
+        object Last : Order("last")
+
+    }
+
+    sealed class Dimensions(suffix: String) : UIKitFlex(suffix) {
+
+        object None : Dimensions("none")
+        object Auto : Dimensions("auto")
+        object BasedOnFlex : Dimensions("1")
+
+    }
+
+    object NoWrap : UIKitFlex("nowrap")
+
+}