diff --git a/package-lock.json b/package-lock.json
index 94fd1134..c0f40e57 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,6 +26,7 @@
         "@radix-ui/react-toast": "^1.1.5",
         "@radix-ui/react-tooltip": "^1.0.7",
         "lodash": "^4.17.21",
+        "re-resizable": "6.10.3",
         "react-sortablejs": "^6.1.4",
         "react-syntax-highlighter": "^15.5.0",
         "react-virtualized-auto-sizer": "^1.0.20",
@@ -15288,6 +15289,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/re-resizable": {
+      "version": "6.10.3",
+      "resolved": "https://registry.npmjs.org/re-resizable/-/re-resizable-6.10.3.tgz",
+      "integrity": "sha512-zvWb7X3RJMA4cuSrqoxgs3KR+D+pEXnGrD2FAD6BMYAULnZsSF4b7AOVyG6pC3VVNVOtlagGDCDmZSwWLjjBBw==",
+      "peerDependencies": {
+        "react": "^16.13.1 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-dom": "^16.13.1 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/react": {
       "version": "18.3.1",
       "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
diff --git a/package.json b/package.json
index f12cc261..32ec3313 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,7 @@
     "@radix-ui/react-toast": "^1.1.5",
     "@radix-ui/react-tooltip": "^1.0.7",
     "lodash": "^4.17.21",
+    "re-resizable": "6.10.3",
     "react-sortablejs": "^6.1.4",
     "react-syntax-highlighter": "^15.5.0",
     "react-virtualized-auto-sizer": "^1.0.20",
diff --git a/src/App.tsx b/src/App.tsx
index ab147143..e5017044 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -732,6 +732,23 @@ const App = () => {
               <InlineCodeBlock>7. grow="0"</InlineCodeBlock>
             </Container>
           </Container>
+
+          <Text>
+            Parent Container:
+            <InlineCodeBlock>
+              border="default" fillWidth=true padding="md"
+            </InlineCodeBlock>
+          </Text>
+
+          <Container
+            border="default"
+            fillWidth
+            padding="md"
+          >
+            <Container grow="0">
+              <InlineCodeBlock>7. grow="0"</InlineCodeBlock>
+            </Container>
+          </Container>
         </Container>
 
         <Spacer />
diff --git a/src/components/Container/Container.tsx b/src/components/Container/Container.tsx
index bbd84095..b8bf6c40 100644
--- a/src/components/Container/Container.tsx
+++ b/src/components/Container/Container.tsx
@@ -9,6 +9,7 @@ import {
 import { Orientation } from "@/components";
 
 type AlignItemsOptions = "start" | "center" | "end" | "stretch";
+type BorderColor = "default" | "intense" | "muted";
 export type GapOptions = "none" | "xxs" | "xs" | "sm" | "md" | "lg" | "xl" | "xxl";
 type GrowShrinkOptions = "0" | "1" | "2" | "3" | "4" | "5" | "6";
 type JustifyContentOptions =
@@ -25,6 +26,7 @@ type WrapOptions = "nowrap" | "wrap" | "wrap-reverse";
 
 export interface ContainerProps<T extends ElementType = "div"> {
   component?: T;
+  border?: BorderColor;
   alignItems?: AlignItemsOptions;
   children?: React.ReactNode;
   fillWidth?: boolean;
@@ -51,6 +53,7 @@ type ContainerPolymorphicComponent = <T extends ElementType = "div">(
 const _Container = <T extends ElementType = "div">(
   {
     component,
+    border,
     alignItems,
     children,
     fillWidth = true,
@@ -77,6 +80,7 @@ const _Container = <T extends ElementType = "div">(
       ref={ref}
       as={component ?? "div"}
       $alignItems={alignItems ?? (orientation === "vertical" ? "start" : "center")}
+      $border={border}
       $fillWidth={fillWidth}
       $gapSize={gap}
       $grow={grow}
@@ -101,6 +105,7 @@ const _Container = <T extends ElementType = "div">(
 };
 const Wrapper = styled.div<{
   $alignItems: AlignItemsOptions;
+  $border?: BorderColor;
   $fillWidth?: boolean;
   $gapSize: GapOptions;
   $grow?: GrowShrinkOptions;
@@ -130,6 +135,8 @@ const Wrapper = styled.div<{
   ${({ $overflow }) => `
     ${$overflow && `overflow: ${$overflow}`};
   `}
+  ${({ $border, theme }) =>
+    $border ? `border: 1px solid ${theme.click.global.color.stroke[$border]};` : ""}
   flex-wrap: ${({ $wrap = "nowrap" }) => $wrap};
   gap: ${({ theme, $gapSize }) => theme.click.container.gap[$gapSize]};
   max-width: ${({ $maxWidth }) => $maxWidth ?? "none"};
diff --git a/src/components/Flyout/Flyout.tsx b/src/components/Flyout/Flyout.tsx
index 8890f5c7..168889c0 100644
--- a/src/components/Flyout/Flyout.tsx
+++ b/src/components/Flyout/Flyout.tsx
@@ -1,4 +1,4 @@
-import { ReactNode } from "react";
+import { ReactNode, useEffect, useState } from "react";
 import {
   Dialog,
   DialogClose,
@@ -25,6 +25,7 @@ import {
 import { styled } from "styled-components";
 import { CrossButton } from "../commonElement";
 import { keyframes } from "styled-components";
+import { Resizable } from "re-resizable";
 
 export type FlyoutProps = DialogProps;
 
@@ -62,7 +63,9 @@ export interface DialogContentProps extends RadixDialogContentProps {
   type?: FlyoutType;
   strategy?: Strategy;
   closeOnInteractOutside?: boolean;
-  width?: string;
+  resizable?: boolean;
+  onFlyoutResize?: (width: number) => void;
+  width?: string | number;
   align?: DialogContentAlignmentType;
 }
 
@@ -76,7 +79,7 @@ const FlyoutContent = styled(DialogContent)<{
   $size?: FlyoutSizeType;
   $type?: FlyoutType;
   $strategy: Strategy;
-  $width?: string;
+  $width?: string | number;
   $align: DialogContentAlignmentType;
 }>`
   display: flex;
@@ -85,9 +88,9 @@ const FlyoutContent = styled(DialogContent)<{
   overflow: hidden;
   top: 0;
   bottom: 0;
-  width: fit-content;
-  --flyout-width: ${({ theme, $size = "default", $width }) =>
-    $width || theme.click.flyout.size[$size].width};
+  width: 100%;
+  --flyout-width: ${({ $width }) =>
+    (typeof $width === "number" ? `${$width}px` : $width) || "100%"};
   animation: ${animationWidth} 500ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
   ${({ theme, $strategy, $type = "default", $align }) => `
     ${$align === "start" ? "left" : "right"}: 0;
@@ -138,19 +141,52 @@ const FlyoutContainer = styled.div`
   gap: inherit;
 `;
 
+const defaultWidths = {
+  default: 440,
+  wide: 600,
+  narrow: 336,
+};
+
+const MIN_WIDTH = 200;
+
 const Content = ({
   showOverlay = false,
   children,
   container,
   strategy = "relative",
-  size,
+  size = "default",
   type = "default",
   closeOnInteractOutside = false,
-  width,
+  onFlyoutResize,
+  resizable = false,
+  width: widthProp,
   align = "end",
   onInteractOutside,
   ...props
 }: DialogContentProps) => {
+  const [width, setWidth] = useState(defaultWidths[size]);
+
+  useEffect(() => {
+    if (typeof widthProp === "number") {
+      setWidth(Number(widthProp));
+    }
+  }, [widthProp]);
+
+  const resizeEnable = {
+    top: false,
+    right: false,
+    bottom: false,
+    left: false,
+    topRight: false,
+    bottomRight: false,
+    bottomLeft: false,
+    topLeft: false,
+  };
+
+  if (resizable) {
+    resizeEnable[align === "start" ? "right" : "left"] = true;
+  }
+
   return (
     <DialogPortal container={container}>
       {showOverlay && <DialogOverlay className="DialogOverlay" />}
@@ -166,11 +202,32 @@ const Content = ({
             onInteractOutside(e);
           }
         }}
-        $width={width}
+        $width={resizable ? undefined : widthProp}
         $align={align}
         {...props}
       >
-        {children}
+        <Resizable
+          size={{
+            width: resizable ? width : undefined,
+            height: "100%",
+          }}
+          onResizeStop={(_, __, ___, delta) => {
+            setWidth(currentWidth => currentWidth + delta.width);
+            if (typeof onFlyoutResize === "function") {
+              onFlyoutResize(width + delta.width);
+            }
+          }}
+          minWidth={MIN_WIDTH}
+          enable={resizeEnable}
+        >
+          <Container
+            orientation="vertical"
+            grow="1"
+            minHeight="100%"
+          >
+            {children}
+          </Container>
+        </Resizable>
       </FlyoutContent>
     </DialogPortal>
   );