diff --git a/src/components/demo/collapse-menu-button.tsx b/src/components/demo/collapse-menu-button.tsx
index adcc665..0bafd85 100644
--- a/src/components/demo/collapse-menu-button.tsx
+++ b/src/components/demo/collapse-menu-button.tsx
@@ -2,7 +2,7 @@
 
 import Link from "next/link";
 import { useState } from "react";
-import { ChevronDown, ChevronUp, Dot, LucideIcon } from "lucide-react";
+import { ChevronDown, Dot, LucideIcon } from "lucide-react";
 
 import { cn } from "@/lib/utils";
 import { Button } from "@/components/ui/button";
@@ -57,7 +57,10 @@ export function CollapseMenuButton({
       onOpenChange={setIsCollapsed}
       className="w-full"
     >
-      <CollapsibleTrigger asChild>
+      <CollapsibleTrigger
+        className="[&[data-state=open]>div>div>svg]:rotate-180"
+        asChild
+      >
         <Button
           variant={active ? "secondary" : "ghost"}
           className="w-full justify-start h-10"
@@ -86,16 +89,15 @@ export function CollapseMenuButton({
                   : "-translate-x-96 opacity-0"
               )}
             >
-              {isCollapsed ? (
-                <ChevronUp size={18} />
-              ) : (
-                <ChevronDown size={18} />
-              )}
+              <ChevronDown
+                size={18}
+                className="transition-transform duration-200"
+              />
             </div>
           </div>
         </Button>
       </CollapsibleTrigger>
-      <CollapsibleContent>
+      <CollapsibleContent className="overflow-hidden data-[state=closed]:animate-collapsible-up data-[state=open]:animate-collapsible-down">
         {submenus.map(({ href, label, active }, index) => (
           <Button
             key={index}
@@ -137,30 +139,6 @@ export function CollapseMenuButton({
                     <span className={cn(isOpen === false ? "" : "mr-4")}>
                       <Icon size={18} />
                     </span>
-                    <p
-                      className={cn(
-                        "whitespace-nowrap",
-                        isOpen === false
-                          ? "-translate-x-96 opacity-0 hidden"
-                          : "translate-x-0 opacity-100"
-                      )}
-                    >
-                      {label}
-                    </p>
-                  </div>
-                  <div
-                    className={cn(
-                      "whitespace-nowrap",
-                      isOpen
-                        ? "translate-x-0 opacity-100"
-                        : "-translate-x-96 opacity-0"
-                    )}
-                  >
-                    {isCollapsed ? (
-                      <ChevronUp size={18} />
-                    ) : (
-                      <ChevronDown size={18} />
-                    )}
                   </div>
                 </div>
               </Button>
diff --git a/tailwind.config.ts b/tailwind.config.ts
index 84287e8..1298cd0 100644
--- a/tailwind.config.ts
+++ b/tailwind.config.ts
@@ -1,21 +1,21 @@
-import type { Config } from "tailwindcss"
+import type { Config } from "tailwindcss";
 
 const config = {
   darkMode: ["class"],
   content: [
-    './pages/**/*.{ts,tsx}',
-    './components/**/*.{ts,tsx}',
-    './app/**/*.{ts,tsx}',
-    './src/**/*.{ts,tsx}',
-	],
+    "./pages/**/*.{ts,tsx}",
+    "./components/**/*.{ts,tsx}",
+    "./app/**/*.{ts,tsx}",
+    "./src/**/*.{ts,tsx}"
+  ],
   prefix: "",
   theme: {
     container: {
       center: true,
       padding: "2rem",
       screens: {
-        "2xl": "1400px",
-      },
+        "2xl": "1400px"
+      }
     },
     extend: {
       colors: {
@@ -26,55 +26,65 @@ const config = {
         foreground: "hsl(var(--foreground))",
         primary: {
           DEFAULT: "hsl(var(--primary))",
-          foreground: "hsl(var(--primary-foreground))",
+          foreground: "hsl(var(--primary-foreground))"
         },
         secondary: {
           DEFAULT: "hsl(var(--secondary))",
-          foreground: "hsl(var(--secondary-foreground))",
+          foreground: "hsl(var(--secondary-foreground))"
         },
         destructive: {
           DEFAULT: "hsl(var(--destructive))",
-          foreground: "hsl(var(--destructive-foreground))",
+          foreground: "hsl(var(--destructive-foreground))"
         },
         muted: {
           DEFAULT: "hsl(var(--muted))",
-          foreground: "hsl(var(--muted-foreground))",
+          foreground: "hsl(var(--muted-foreground))"
         },
         accent: {
           DEFAULT: "hsl(var(--accent))",
-          foreground: "hsl(var(--accent-foreground))",
+          foreground: "hsl(var(--accent-foreground))"
         },
         popover: {
           DEFAULT: "hsl(var(--popover))",
-          foreground: "hsl(var(--popover-foreground))",
+          foreground: "hsl(var(--popover-foreground))"
         },
         card: {
           DEFAULT: "hsl(var(--card))",
-          foreground: "hsl(var(--card-foreground))",
-        },
+          foreground: "hsl(var(--card-foreground))"
+        }
       },
       borderRadius: {
         lg: "var(--radius)",
         md: "calc(var(--radius) - 2px)",
-        sm: "calc(var(--radius) - 4px)",
+        sm: "calc(var(--radius) - 4px)"
       },
       keyframes: {
         "accordion-down": {
           from: { height: "0" },
-          to: { height: "var(--radix-accordion-content-height)" },
+          to: { height: "var(--radix-accordion-content-height)" }
         },
         "accordion-up": {
           from: { height: "var(--radix-accordion-content-height)" },
-          to: { height: "0" },
+          to: { height: "0" }
+        },
+        "collapsible-down": {
+          from: { height: "0" },
+          to: { height: "var(--radix-collapsible-content-height)" }
         },
+        "collapsible-up": {
+          from: { height: "var(--radix-collapsible-content-height)" },
+          to: { height: "0" }
+        }
       },
       animation: {
         "accordion-down": "accordion-down 0.2s ease-out",
         "accordion-up": "accordion-up 0.2s ease-out",
-      },
-    },
+        "collapsible-down": "collapsible-down 0.2s ease-out",
+        "collapsible-up": "collapsible-up 0.2s ease-out"
+      }
+    }
   },
-  plugins: [require("tailwindcss-animate")],
-} satisfies Config
+  plugins: [require("tailwindcss-animate")]
+} satisfies Config;
 
-export default config
\ No newline at end of file
+export default config;