diff --git a/components/modal/__tests__/__snapshots__/index.test.tsx.snap b/components/modal/__tests__/__snapshots__/index.test.tsx.snap
index f574ca5..928d38d 100644
--- a/components/modal/__tests__/__snapshots__/index.test.tsx.snap
+++ b/components/modal/__tests__/__snapshots__/index.test.tsx.snap
@@ -103,53 +103,129 @@ exports[`Modal should render correctly 1`] = `
         .content > :global(*:last-child) {
           margin-bottom: 0;
         }
-      </style><div></div><footer><button class=\\"\\">Cancel</button><style>
-        button {
-          font-size: 0.75rem;
-          text-transform: uppercase;
-          display: flex;
-          -webkit-box-align: center;
-          align-items: center;
-          -webkit-box-pack: center;
-          justify-content: center;
-          outline: none;
-          text-decoration: none;
-          transition: all 200ms ease-in-out 0s;
-          border: none;
-          color: #666;
-          background-color: #fff;
-          cursor: pointer;
-          flex: 1;
-        }
+      </style><div></div><footer><button type=\\"button\\" class=\\"btn mock \\"><div class=\\"text\\">Cancel</div><style>
+          .btn {
+            box-sizing: border-box;
+            display: inline-block;
+            padding: 0 1.375rem;
+            height: 2.5rem;
+            line-height: 2.5rem;
+            min-width: 12.5rem;
+            width: auto;
+            border-radius: 5px;
+            font-weight: 400;
+            font-size: .875rem;
+            user-select: none;
+            outline: none;
+            text-transform: capitalize;
+            justify-content: center;
+            text-align: center;
+            white-space: nowrap;
+            transition: background-color 200ms ease 0ms, box-shadow 200ms ease 0ms,
+              border 200ms ease 0ms, color 200ms ease 0ms;
+            position: relative;
+            overflow: hidden;
+            color: #666;
+            background-color: #fff;
+            border: 1px solid #eaeaea;
+            cursor: pointer;
+            pointer-events: auto;
+            box-shadow: none;
+            --zeit-ui-button-padding: 1.375rem;
+            --zeit-ui-button-height: 2.5rem;
+            --zeit-ui-button-color: #666;
+            --zeit-ui-button-bg: #fff;
+          }
 
-        button:hover {
-          color: #000;
-          background-color: #fafafa;
-        }
-      </style><button class=\\"\\">Submit</button><style>
-        button {
-          font-size: 0.75rem;
-          text-transform: uppercase;
-          display: flex;
-          -webkit-box-align: center;
-          align-items: center;
-          -webkit-box-pack: center;
-          justify-content: center;
-          outline: none;
-          text-decoration: none;
-          transition: all 200ms ease-in-out 0s;
-          border: none;
-          color: #000;
-          background-color: #fff;
-          cursor: pointer;
-          flex: 1;
-        }
+          .btn:hover {
+            color: #000;
+            --zeit-ui-button-color: #000;
+            background-color: #fff;
+            border-color: #000;
+            cursor: pointer;
+            pointer-events: auto;
+            box-shadow: none;
+            transform: translate3d(0px, 0px, 0px);
+          }
 
-        button:hover {
-          color: #000;
-          background-color: #fafafa;
-        }
-      </style></footer><style>
+          .btn :global(.text) {
+            position: relative;
+            z-index: 1;
+            display: inline-flex;
+            justify-content: center;
+            align-items: center;
+            text-align: center;
+            line-height: inherit;
+            top: -1px;
+          }
+
+          .btn :global(.text p),
+          .btn :global(.text pre),
+          .btn :global(.text div) {
+            margin: 0;
+          }
+        </style></button><button type=\\"button\\" class=\\"btn mock \\"><div class=\\"text\\">Submit</div><style>
+          .btn {
+            box-sizing: border-box;
+            display: inline-block;
+            padding: 0 1.375rem;
+            height: 2.5rem;
+            line-height: 2.5rem;
+            min-width: 12.5rem;
+            width: auto;
+            border-radius: 5px;
+            font-weight: 400;
+            font-size: .875rem;
+            user-select: none;
+            outline: none;
+            text-transform: capitalize;
+            justify-content: center;
+            text-align: center;
+            white-space: nowrap;
+            transition: background-color 200ms ease 0ms, box-shadow 200ms ease 0ms,
+              border 200ms ease 0ms, color 200ms ease 0ms;
+            position: relative;
+            overflow: hidden;
+            color: #666;
+            background-color: #fff;
+            border: 1px solid #eaeaea;
+            cursor: pointer;
+            pointer-events: auto;
+            box-shadow: none;
+            --zeit-ui-button-padding: 1.375rem;
+            --zeit-ui-button-height: 2.5rem;
+            --zeit-ui-button-color: #666;
+            --zeit-ui-button-bg: #fff;
+          }
+
+          .btn:hover {
+            color: #000;
+            --zeit-ui-button-color: #000;
+            background-color: #fff;
+            border-color: #000;
+            cursor: pointer;
+            pointer-events: auto;
+            box-shadow: none;
+            transform: translate3d(0px, 0px, 0px);
+          }
+
+          .btn :global(.text) {
+            position: relative;
+            z-index: 1;
+            display: inline-flex;
+            justify-content: center;
+            align-items: center;
+            text-align: center;
+            line-height: inherit;
+            top: -1px;
+          }
+
+          .btn :global(.text p),
+          .btn :global(.text pre),
+          .btn :global(.text div) {
+            margin: 0;
+          }
+        </style></button></footer><style>
         footer {
           display: flex;
           overflow: hidden;
@@ -164,7 +240,7 @@ exports[`Modal should render correctly 1`] = `
           border-bottom-right-radius: 5px;
         }
 
-        footer > :global(button + button) {
+        footer > :global(button.btn + button.btn) {
           border-left: 1px solid #eaeaea;
         }
 
diff --git a/components/modal/modal-action.tsx b/components/modal/modal-action.tsx
index 60e5f24..6afe121 100644
--- a/components/modal/modal-action.tsx
+++ b/components/modal/modal-action.tsx
@@ -1,7 +1,15 @@
-import React, { MouseEvent, useMemo } from 'react'
-import withDefaults from '../utils/with-defaults'
+import React, {
+  MouseEvent,
+  PropsWithoutRef,
+  RefAttributes,
+  useImperativeHandle,
+  useMemo,
+  useRef,
+} from 'react'
+import css from 'styled-jsx/css'
 import useTheme from '../styles/use-theme'
 import { useModalContext } from './modal-context'
+import Button, { ButtonProps } from '../button/button'
 
 type ModalActionEvent = MouseEvent<HTMLButtonElement> & {
   close: () => void
@@ -20,66 +28,82 @@ const defaultProps = {
   disabled: false,
 }
 
-type NativeAttrs = Omit<React.ButtonHTMLAttributes<any>, keyof Props>
-export type ModalActionProps = Props & typeof defaultProps & NativeAttrs
+export type ModalActionProps = Props & typeof defaultProps & Omit<ButtonProps, keyof Props>
 
-const ModalAction: React.FC<ModalActionProps> = ({
-  className,
-  children,
-  onClick,
-  passive,
-  disabled,
-  ...props
-}) => {
-  const theme = useTheme()
-  const { close } = useModalContext()
-  const clickHandler = (event: MouseEvent<HTMLButtonElement>) => {
-    if (disabled) return
-    const actionEvent = Object.assign({}, event, {
-      close: () => close && close(),
-    })
-    onClick && onClick(actionEvent)
-  }
+const ModalAction = React.forwardRef<HTMLButtonElement, React.PropsWithChildren<ModalActionProps>>(
+  (
+    { className, children, onClick, passive, disabled, ...props },
+    ref: React.Ref<HTMLButtonElement | null>,
+  ) => {
+    const theme = useTheme()
+    const btnRef = useRef<HTMLButtonElement>(null)
+    const { close } = useModalContext()
+    useImperativeHandle(ref, () => btnRef.current)
 
-  const color = useMemo(() => {
-    return passive || disabled ? theme.palette.accents_5 : theme.palette.foreground
-  }, [theme.palette, passive, disabled])
+    const clickHandler = (event: MouseEvent<HTMLButtonElement>) => {
+      if (disabled) return
+      const actionEvent = Object.assign({}, event, {
+        close: () => close && close(),
+      })
+      onClick && onClick(actionEvent)
+    }
 
-  const bgColor = useMemo(() => {
-    return disabled ? theme.palette.accents_1 : theme.palette.background
-  }, [theme.palette, disabled])
+    const color = useMemo(() => {
+      return passive ? theme.palette.accents_5 : theme.palette.foreground
+    }, [theme.palette, passive, disabled])
 
-  return (
-    <>
-      <button className={className} onClick={clickHandler} {...props}>
+    const bgColor = useMemo(() => {
+      return disabled ? theme.palette.accents_1 : theme.palette.background
+    }, [theme.palette, disabled])
+
+    const { className: resolveClassName, styles } = css.resolve`
+      button.btn {
+        font-size: 0.75rem;
+        border: none;
+        color: ${color};
+        background-color: ${theme.palette.background};
+        display: flex;
+        -webkit-box-align: center;
+        align-items: center;
+        -webkit-box-pack: center;
+        justify-content: center;
+        flex: 1;
+        height: 100%;
+        border-radius: 0;
+      }
+      button.btn:hover {
+        color: ${disabled ? color : theme.palette.foreground};
+        background-color: ${disabled ? bgColor : theme.palette.accents_1};
+      }
+    `
+
+    const overrideProps = {
+      ...props,
+      effect: false,
+      ref: btnRef,
+    }
+
+    return (
+      <Button
+        className={`${resolveClassName} ${className}`}
+        onClick={clickHandler}
+        disabled={disabled}
+        {...overrideProps}>
         {children}
-      </button>
-      <style jsx>{`
-        button {
-          font-size: 0.75rem;
-          text-transform: uppercase;
-          display: flex;
-          -webkit-box-align: center;
-          align-items: center;
-          -webkit-box-pack: center;
-          justify-content: center;
-          outline: none;
-          text-decoration: none;
-          transition: all 200ms ease-in-out 0s;
-          border: none;
-          color: ${color};
-          background-color: ${bgColor};
-          cursor: ${disabled ? 'not-allowed' : 'pointer'};
-          flex: 1;
-        }
+        {styles}
+      </Button>
+    )
+  },
+)
 
-        button:hover {
-          color: ${disabled ? color : theme.palette.foreground};
-          background-color: ${disabled ? bgColor : theme.palette.accents_1};
-        }
-      `}</style>
-    </>
-  )
-}
+type ModalActionComponent<T, P = {}> = React.ForwardRefExoticComponent<
+  PropsWithoutRef<P> & RefAttributes<T>
+>
 
-export default withDefaults(ModalAction, defaultProps)
+type ComponentProps = Partial<typeof defaultProps> &
+  Omit<Props, keyof typeof defaultProps> &
+  Partial<Omit<ButtonProps, keyof Props>>
+
+ModalAction.defaultProps = defaultProps
+
+export default ModalAction as ModalActionComponent<ComponentProps>
diff --git a/components/modal/modal-actions.tsx b/components/modal/modal-actions.tsx
index 0c2d088..443c3ac 100644
--- a/components/modal/modal-actions.tsx
+++ b/components/modal/modal-actions.tsx
@@ -22,7 +22,7 @@ const ModalActions: React.FC<React.PropsWithChildren<{}>> = ({ children, ...prop
           border-bottom-right-radius: ${theme.layout.radius};
         }
 
-        footer > :global(button + button) {
+        footer > :global(button.btn + button.btn) {
           border-left: 1px solid ${theme.palette.border};
         }
 
diff --git a/pages/en-us/components/modal.mdx b/pages/en-us/components/modal.mdx
index 0084f53..808e43f 100644
--- a/pages/en-us/components/modal.mdx
+++ b/pages/en-us/components/modal.mdx
@@ -159,6 +159,30 @@ Display popup content that requires attention or provides additional information
 `}
 />
 
+<Playground
+  title="Loading"
+  scope={{ Modal, Button, useModal }}
+  code={`
+() => {
+  const { visible, setVisible, bindings } = useModal()
+  return (
+    <>
+      <Button auto onClick={() => setVisible(true)}>Show Modal</Button>
+      <Modal {...bindings}>
+        <Modal.Title>Modal</Modal.Title>
+        <Modal.Subtitle>This is a modal</Modal.Subtitle>
+        <Modal.Content>
+          <p>Some content contained within the modal.</p>
+        </Modal.Content>
+        <Modal.Action passive onClick={() => setVisible(false)}>Cancel</Modal.Action>
+        <Modal.Action loading>Submit</Modal.Action>
+      </Modal>
+    </>
+  )
+}
+`}
+/>
+
 <Attributes edit="/pages/en-us/components/modal.mdx">
 <Attributes.Title>Modal.Props</Attributes.Title>
 
@@ -190,12 +214,6 @@ Display popup content that requires attention or provides additional information
 | --------- | ------------ | ---------------- | ------------------------ | ------- |
 | ...       | native props | `HTMLAttributes` | `'id', 'className', ...` | -       |
 
-<Attributes.Title>Modal.Actions.Props</Attributes.Title>
-
-| Attribute | Description | Type | Accepted values | Default |
-| --------- | ----------- | ---- | --------------- | ------- |
-| -         | -           | -    | -               | -       |
-
 <Attributes.Title>Modal.Action.Props</Attributes.Title>
 
 | Attribute    | Description            | Type                                                   | Accepted values          | Default |
@@ -203,6 +221,7 @@ Display popup content that requires attention or provides additional information
 | **passive**  | display passive mode   | `boolean`                                              | -                        | `false` |
 | **disabled** | disable current action | `boolean`                                              | -                        | `false` |
 | **onClick**  | click handler          | [(event: ModalActionEvent) => void](#modalactionevent) | -                        | -       |
+| **loading**  | show loading           | `boolean`                                              | -                        | `false` |
 | ...          | native props           | `ButtonHTMLAttributes`                                 | `'id', 'className', ...` | -       |
 
 <Attributes.Title>useModal</Attributes.Title>
diff --git a/pages/zh-cn/components/modal.mdx b/pages/zh-cn/components/modal.mdx
index 1c16072..f4ade63 100644
--- a/pages/zh-cn/components/modal.mdx
+++ b/pages/zh-cn/components/modal.mdx
@@ -40,8 +40,8 @@ export const meta = {
         <Modal.Content>
           <p> <Code>yield</Code> 关键字通常不能在箭头函数中使用（除非是嵌套在允许使用的函数内）。因此，箭头函数不能用作函数生成器。</p>
         </Modal.Content>
-        <Modal.Action passive>放弃使用</Modal.Action>
-        <Modal.Action>明白了</Modal.Action>
+        <Modal.Action passive onClick={({ close }) => close()}>放弃使用</Modal.Action>
+        <Modal.Action onClick={({ close }) => close()}>明白了</Modal.Action>
       </Modal>
     </div>
   )
@@ -69,8 +69,8 @@ export const meta = {
         <Modal.Content>
           <p> <Code>yield</Code> 关键字通常不能在箭头函数中使用（除非是嵌套在允许使用的函数内）。因此，箭头函数不能用作函数生成器。</p>
         </Modal.Content>
-        <Modal.Action passive>放弃使用</Modal.Action>
-        <Modal.Action>明白了</Modal.Action>
+        <Modal.Action passive onClick={() => setVisible(false)}>放弃使用</Modal.Action>
+        <Modal.Action onClick={() => setVisible(false)}>明白了</Modal.Action>
       </Modal>
     </>
   )
@@ -127,8 +127,8 @@ export const meta = {
         <Modal.Content>
           <p> <Code>yield</Code> 关键字通常不能在箭头函数中使用（除非是嵌套在允许使用的函数内）。因此，箭头函数不能用作函数生成器。</p>
         </Modal.Content>
-        <Modal.Action passive>继续学习</Modal.Action>
-        <Modal.Action disabled>尝试箭头函数</Modal.Action>
+        <Modal.Action passive onClick={({ close }) => close()}>继续学习</Modal.Action>
+        <Modal.Action disabled onClick={close => close()}>尝试箭头函数</Modal.Action>
       </Modal>
     </>
   )
@@ -158,6 +158,30 @@ export const meta = {
 `}
 />
 
+<Playground
+  title="加载中"
+  scope={{ Modal, Button, useModal, Code }}
+  code={`
+() => {
+  const { visible, setVisible, bindings } = useModal()
+  return (
+    <>
+      <Button auto onClick={() => setVisible(true)}>Show Modal</Button>
+      <Modal {...bindings}>
+        <Modal.Title>箭头函数</Modal.Title>
+        <Modal.Subtitle>它不能用作构造函数</Modal.Subtitle>
+        <Modal.Content>
+          <p> <Code>yield</Code> 关键字通常不能在箭头函数中使用（除非是嵌套在允许使用的函数内）。因此，箭头函数不能用作函数生成器。</p>
+        </Modal.Content>
+        <Modal.Action passive onClick={() => setVisible(false)}>取消</Modal.Action>
+        <Modal.Action loading>提交</Modal.Action>
+      </Modal>
+    </>
+  )
+}
+`}
+/>
+
 <Attributes edit="/pages/zh-cn/components/modal.mdx">
 <Attributes.Title>Modal.Props</Attributes.Title>
 
@@ -189,12 +213,6 @@ export const meta = {
 | ---- | -------- | ---------------- | ------------------------ | ---- |
 | ...  | 原生属性 | `HTMLAttributes` | `'id', 'className', ...` | -    |
 
-<Attributes.Title>Modal.Actions.Props</Attributes.Title>
-
-| 属性 | 描述 | 类型 | 推荐值 | 默认 |
-| ---- | ---- | ---- | ------ | ---- |
-| -    | -    | -    | -      | -    |
-
 <Attributes.Title>Modal.Action.Props</Attributes.Title>
 
 | 属性         | 描述                 | 类型                                                   | 推荐值                   | 默认    |
@@ -202,6 +220,7 @@ export const meta = {
 | **passive**  | 以消极的状态显示按钮 | `boolean`                                              | -                        | `false` |
 | **disabled** | 禁用按钮             | `boolean`                                              | -                        | `false` |
 | **onClick**  | 按钮的点击事件       | [(event: ModalActionEvent) => void](#modalactionevent) | -                        | -       |
+| **loading**  | 显示加载状态指示器   | `boolean`                                              | -                        | `false` |
 | ...          | 原生属性             | `ButtonHTMLAttributes`                                 | `'id', 'className', ...` | -       |
 
 <Attributes.Title>useModal</Attributes.Title>