diff --git a/packages/designer/src/sidebar/index.ts b/packages/designer/src/sidebar/index.ts
index 1751100e..47338867 100644
--- a/packages/designer/src/sidebar/index.ts
+++ b/packages/designer/src/sidebar/index.ts
@@ -4,4 +4,5 @@ export * from './components-panel';
 export * from './dependency-panel';
 export * from './history-panel';
 export * from './variable-panel';
-export * from './sidebar';
\ No newline at end of file
+export * from './sidebar';
+export * from './resizable-box';
diff --git a/packages/designer/src/sidebar/resizable-box.tsx b/packages/designer/src/sidebar/resizable-box.tsx
index 127e0c61..a02f9eeb 100644
--- a/packages/designer/src/sidebar/resizable-box.tsx
+++ b/packages/designer/src/sidebar/resizable-box.tsx
@@ -1,45 +1,98 @@
-import React, { useState } from 'react';
+import React, { useEffect, useState } from 'react';
 import cx from 'classnames';
 import { Box, HTMLCoralProps, css } from 'coral-system';
-import { Resizable } from 'react-resizable';
+import { Resizable, ResizeHandle } from 'react-resizable';
 
-const resizeHandleStyle = css`
+export interface ResizableBoxProps extends HTMLCoralProps<'div'> {
+  width?: number;
+  height?: number;
+  resizeHandlePosition?: 'left' | 'right' | 'top' | 'bottom';
+  axis?: 'x' | 'y';
+}
+
+const resizeHandleStyle = (axis: ResizableBoxProps['axis'], barStyle: HTMLCoralProps<'div'>) => css`
   position: absolute;
-  top: 0;
   z-index: 999;
-  width: 4px;
-  height: 100%;
-  cursor: col-resize;
-
+  cursor: ${axis === 'x' ? 'col-resize' : 'row-resize'};
+  ${barStyle &&
+  Object.keys(barStyle)
+    .map((key) => `${key}: ${barStyle[key]};`)
+    .join('')}
   &:hover,
   &:active {
     background-color: var(--tango-colors-brand);
   }
 `;
 
-export interface ResizableBoxProps extends HTMLCoralProps<'div'> {
-  width?: number;
-  height?: number;
-  resizeHandlePosition?: 'left' | 'right';
-}
+const getResizeHandles = (
+  resizeHandlePosition: ResizableBoxProps['resizeHandlePosition'],
+  axis: ResizableBoxProps['axis'],
+) => {
+  const handles: ResizeHandle[] = [];
+  switch (axis) {
+    case 'x':
+      handles.push(resizeHandlePosition === 'right' ? 'e' : 'w');
+      break;
+    case 'y':
+      handles.push(resizeHandlePosition === 'bottom' ? 's' : 'n');
+      break;
+    default:
+      break;
+  }
+  return handles;
+};
 
 export function ResizableBox({
   resizeHandlePosition = 'right',
   width: widthProp,
-  height,
+  height: heightProp,
   children,
   className,
   style,
+  axis = 'x',
 }: ResizableBoxProps) {
   const [width, setWidth] = useState(widthProp);
-  const barStyle = resizeHandlePosition === 'right' ? { right: '-4px' } : { left: '-4px' };
+  const [height, setHeight] = useState(heightProp);
+
+  const barStyle: HTMLCoralProps<'div'> = {
+    ...(axis === 'x'
+      ? {
+          height: '100%',
+          width: '4px',
+          top: '0',
+          [resizeHandlePosition === 'right' ? 'right' : 'left']: '-4px',
+        }
+      : {
+          height: '4px',
+          width: '100%',
+          left: '0',
+          [resizeHandlePosition === 'bottom' ? 'bottom' : 'top']: '0',
+        }),
+  };
+
+  useEffect(() => {
+    setWidth(widthProp);
+  }, [widthProp]);
+
+  useEffect(() => {
+    setHeight(heightProp);
+  }, [heightProp]);
+
   return (
     <Resizable
-      axis="x"
+      axis={axis}
       width={width}
+      resizeHandles={getResizeHandles(resizeHandlePosition, axis)}
       height={height}
+      minConstraints={[150, 150]}
+      maxConstraints={[window.innerWidth * 0.6, window.innerHeight * 0.8]}
       onResize={(e, { size }) => {
-        setWidth(size.width);
+        if (axis === 'x') {
+          setWidth(size.width);
+        }
+        if (axis === 'y') {
+          setHeight(size.height);
+        }
       }}
       onResizeStart={() => {
         document.body.style.pointerEvents = 'none';
@@ -49,7 +102,7 @@ export function ResizableBox({
         document.body.style.pointerEvents = 'auto';
         document.body.style.userSelect = 'auto';
       }}
-      handle={<Box className="ResizeHandle" css={resizeHandleStyle} {...barStyle} />}
+      handle={<Box className="ResizeHandle" css={resizeHandleStyle(axis, barStyle)} />}
     >
       <div
         className={cx('ResizableBox', className)}