diff --git a/components/auto-complete/auto-complete-context.ts b/components/auto-complete/auto-complete-context.ts
new file mode 100644
index 0000000..5ba965f
--- /dev/null
+++ b/components/auto-complete/auto-complete-context.ts
@@ -0,0 +1,22 @@
+import React, { MutableRefObject } from 'react'
+import { NormalSizes } from '../utils/prop-types'
+
+export interface SelectConfig {
+  value?: string
+  updateValue?: Function
+  visible?: boolean
+  updateVisible?: Function
+  size?: NormalSizes
+  disableAll?: boolean
+  ref?: MutableRefObject<HTMLElement | null>
+}
+
+const defaultContext = {
+  visible: false,
+  size: 'medium' as NormalSizes,
+  disableAll: false,
+}
+
+export const SelectContext = React.createContext<SelectConfig>(defaultContext)
+
+export const useSelectContext = (): SelectConfig => React.useContext<SelectConfig>(SelectContext)
diff --git a/components/auto-complete/auto-complete-dropdown.tsx b/components/auto-complete/auto-complete-dropdown.tsx
new file mode 100644
index 0000000..35822b4
--- /dev/null
+++ b/components/auto-complete/auto-complete-dropdown.tsx
@@ -0,0 +1,11 @@
+import React from 'react'
+
+const AutoComplete = () => {
+  return (
+    <div>
+    
+    </div>
+  )
+}
+
+export default AutoComplete
diff --git a/components/auto-complete/auto-complete-empty.tsx b/components/auto-complete/auto-complete-empty.tsx
new file mode 100644
index 0000000..ec2a88e
--- /dev/null
+++ b/components/auto-complete/auto-complete-empty.tsx
@@ -0,0 +1,45 @@
+import React from 'react'
+import withDefaults from '../utils/with-defaults'
+import useTheme from '../styles/use-theme'
+
+interface Props {
+  className?: string
+}
+
+const defaultProps = {
+  className: '',
+}
+
+export type AutoCompleteSearchProps = Props & typeof defaultProps & React.HTMLAttributes<any>
+
+const AutoCompleteSearch: React.FC<React.PropsWithChildren<AutoCompleteSearchProps>> = ({
+  children, className,
+}) => {
+  const theme = useTheme()
+
+  return (
+    <div className={className}>
+      {children}
+      <style jsx>{`
+        div {
+          display: flex;
+          justify-content: center;
+          text-align: center;
+          align-items: center;
+          font-weight: normal;
+          white-space: pre;
+          font-size: .875rem;
+          padding: ${theme.layout.gapHalf};
+          line-height: 1;
+          background-color: ${theme.palette.background};
+          color: ${theme.palette.accents_5};
+          user-select: none;
+          border: 0;
+          border-radius: ${theme.layout.radius};
+        }
+      `}</style>
+    </div>
+  )
+}
+
+export default withDefaults(AutoCompleteSearch, defaultProps)
diff --git a/components/auto-complete/auto-complete-item.tsx b/components/auto-complete/auto-complete-item.tsx
new file mode 100644
index 0000000..35822b4
--- /dev/null
+++ b/components/auto-complete/auto-complete-item.tsx
@@ -0,0 +1,11 @@
+import React from 'react'
+
+const AutoComplete = () => {
+  return (
+    <div>
+    
+    </div>
+  )
+}
+
+export default AutoComplete
diff --git a/components/auto-complete/auto-complete-searching.tsx b/components/auto-complete/auto-complete-searching.tsx
new file mode 100644
index 0000000..ddae453
--- /dev/null
+++ b/components/auto-complete/auto-complete-searching.tsx
@@ -0,0 +1,72 @@
+import React, { useMemo } from 'react'
+import withDefaults from '../utils/with-defaults'
+import useTheme from '../styles/use-theme'
+import { useAutoCompleteContext } from './auto-complete-context'
+
+interface Props {
+  value: string
+  disabled?: boolean
+}
+
+const defaultProps = {
+  disabled: false,
+}
+
+export type AutoCompleteItemProps = Props & typeof defaultProps & React.HTMLAttributes<any>
+
+const AutoCompleteItem: React.FC<React.PropsWithChildren<AutoCompleteItemProps>> = ({
+  value: identValue, children, disabled,
+}) => {
+  const theme = useTheme()
+  const { value, updateValue } = useAutoCompleteContext()
+  const selectHandler = () => {
+    updateValue && updateValue(identValue)
+  }
+  
+  const isActive = useMemo(() => value === identValue, [identValue, value])
+  
+  return (
+    <div className={`item ${isActive ? 'active' : ''}`} onClick={selectHandler}>
+      {children}
+      <style jsx>{`
+        .item {
+          display: flex;
+          justify-content: flex-start;
+          align-items: center;
+          font-weight: normal;
+          white-space: pre;
+          font-size: .875rem;
+          padding: ${theme.layout.gapHalf};
+          line-height: 1;
+          background-color: ${theme.palette.background};
+          color: ${theme.palette.foreground};
+          user-select: none;
+          border: 0;
+          cursor: ${disabled ? 'not-allowed' : 'pointer'};
+          transition: background 0.2s ease 0s, border-color 0.2s ease 0s;
+        }
+        
+        .item:first-of-type {
+          border-top-left-radius: ${theme.layout.radius};
+          border-top-right-radius: ${theme.layout.radius};
+        }
+        
+        .item:last-of-type {
+          border-bottom-left-radius: ${theme.layout.radius};
+          border-bottom-right-radius: ${theme.layout.radius};
+        }
+        
+        .item:hover {
+          background-color: ${theme.palette.accents_1};
+        }
+        
+        .item.active {
+          background-color: ${theme.palette.accents_1};
+          color: ${theme.palette.success};
+        }
+      `}</style>
+    </div>
+  )
+}
+
+export default withDefaults(AutoCompleteItem, defaultProps)
diff --git a/components/auto-complete/auto-complete.tsx b/components/auto-complete/auto-complete.tsx
new file mode 100644
index 0000000..e69de29
diff --git a/components/auto-complete/index.ts b/components/auto-complete/index.ts
new file mode 100644
index 0000000..e69de29
diff --git a/components/input/input-icon-clear.tsx b/components/input/input-icon-clear.tsx
index ded07ae..05f4d9b 100644
--- a/components/input/input-icon-clear.tsx
+++ b/components/input/input-icon-clear.tsx
@@ -2,13 +2,14 @@ import React, { useMemo } from 'react'
 import useTheme from '../styles/use-theme'
 
 interface Props {
+  visibale: boolean
   onClick?: (event: React.MouseEvent<HTMLDivElement>) => void
   heightRatio?: string | undefined
   disabled?: boolean
 }
 
 const InputIconClear: React.FC<Props> = ({
-  onClick, heightRatio, disabled,
+  onClick, heightRatio, disabled, visibale,
 }) => {
   const theme = useTheme()
   const width = useMemo(() => {
@@ -21,7 +22,7 @@ const InputIconClear: React.FC<Props> = ({
     onClick && onClick(event)
   }
   return (
-    <div onClick={clickHandler}>
+    <div onClick={clickHandler} className={`${visibale ? 'visibale' : ''}`}>
       <svg viewBox="0 0 24 24" stroke="currentColor" strokeWidth="1.5" strokeLinecap="round"
         strokeLinejoin="round" fill="none" shapeRendering="geometricPrecision">
         <path d="M18 6L6 18" />
@@ -39,6 +40,13 @@ const InputIconClear: React.FC<Props> = ({
           box-sizing: border-box;
           transition: color 150ms ease 0s;
           color: ${theme.palette.accents_3};
+          visibility: hidden;
+          opacity: 0;
+        }
+        
+        .visibale {
+          visibility: visible;
+          opacity: 1;
         }
         
         div:hover {
diff --git a/components/input/input-icon.tsx b/components/input/input-icon.tsx
index 6756862..a9fa558 100644
--- a/components/input/input-icon.tsx
+++ b/components/input/input-icon.tsx
@@ -32,6 +32,7 @@ const InputIcon: React.FC<InputIconProps> = React.memo(({
           margin: 0;
           padding: 0 ${padding};
           line-height: 1;
+          position: relative;
         }
       `}</style>
     </span>
diff --git a/components/input/input.tsx b/components/input/input.tsx
index 3d4344b..716a173 100644
--- a/components/input/input.tsx
+++ b/components/input/input.tsx
@@ -24,6 +24,9 @@ interface Props {
   clearable?: boolean
   onChange?: (e: React.ChangeEvent<HTMLInputElement>) => void
   onClearClick?: (e: React.MouseEvent<HTMLDivElement>) => void
+  onFocus?: (e: React.FocusEvent<HTMLInputElement>) => void
+  onBlur?: (e: React.FocusEvent<HTMLInputElement>) => void
+  autoComplete: string
 }
 
 const defaultProps = {
@@ -33,6 +36,7 @@ const defaultProps = {
   width: 'initial',
   size: 'medium',
   status: 'default',
+  autoComplete: 'off',
   className: '',
   placeholder: '',
   initialValue: '',
@@ -43,12 +47,14 @@ export type InputProps = Props & typeof defaultProps & React.InputHTMLAttributes
 const Input: React.FC<InputProps> = ({
   placeholder, label, labelRight, size, status, disabled,
   icon, iconRight, initialValue, onChange, readOnly, value,
-  onClearClick, clearable, width, className, ...props
+  onClearClick, clearable, width, className, onBlur, onFocus,
+  autoComplete, ...props
 }) => {
   const theme = useTheme()
   const [selfValue, setSelfValue] = useState<string>(initialValue)
   const [hover, setHover] = useState<boolean>(false)
   const { heightRatio, fontSize } = useMemo(() => getSizes(size),[size])
+  const showClearIcon = useMemo(() => clearable && selfValue !== '', [selfValue, clearable])
   const labelClasses = useMemo(
     () =>  labelRight ? 'right-label' : (label ? 'left-label' : ''),
     [label, labelRight],
@@ -63,15 +69,23 @@ const Input: React.FC<InputProps> = ({
   )
   const changeHandler = (event: React.ChangeEvent<HTMLInputElement>) => {
     if (disabled || readOnly) return
-    console.log(123, event.target.value)
     setSelfValue(event.target.value)
     onChange && onChange(event)
   }
-  
+
   const clearHandler = (event: React.MouseEvent<HTMLDivElement>) => {
     setSelfValue('')
     onClearClick && onClearClick(event)
   }
+  
+  const focusHandler = (e: React.FocusEvent<HTMLInputElement>) => {
+    setHover(true)
+    onFocus && onFocus(e)
+  }
+  const blurHandler = (e: React.FocusEvent<HTMLInputElement>) => {
+    setHover(false)
+    onBlur && onBlur(e)
+  }
 
   useEffect(() => {
     if (value === undefined) return
@@ -88,12 +102,15 @@ const Input: React.FC<InputProps> = ({
           placeholder={placeholder}
           disabled={disabled}
           readOnly={readOnly}
-          onFocus={() => setHover(true)}
-          onBlur={() => setHover(false)}
+          onFocus={focusHandler}
+          onBlur={blurHandler}
           onChange={changeHandler}
+          autoComplete={autoComplete}
           {...props}
         />
-        {clearable && <InputClearIcon heightRatio={heightRatio}
+        {clearable && <InputClearIcon
+          visibale={showClearIcon}
+          heightRatio={heightRatio}
           disabled={disabled || readOnly}
           onClick={clearHandler} />}
         {iconRight && <InputIcon icon={iconRight} ratio={heightRatio} />}
diff --git a/pages/docs/components/auto-complete.mdx b/pages/docs/components/auto-complete.mdx
new file mode 100644
index 0000000..6bedad2
--- /dev/null
+++ b/pages/docs/components/auto-complete.mdx
@@ -0,0 +1,100 @@
+import { Layout, Playground, Attributes } from 'lib/components'
+import { Avatar, Spacer } from 'components'
+
+export const meta = {
+  title: 'avatar',
+  description: 'avatar',
+}
+
+## Avatar
+
+Avatars represent a user or a team. Stacked avatars represent a group of people.
+
+
+<Playground
+  desc="The `Avatar` contains circle and square."
+  scope={{ Avatar, Spacer }}
+  code={`
+() => {
+  const url = 'https://zeit.co/api/www/avatar/?u=evilrabbit&s=160'
+  return (
+    <>
+      <Avatar src={url} />
+      <Avatar src={url} />
+      <Avatar src={url} />
+      <Avatar src={url} />
+      <Spacer y={.5} />
+      <Avatar src={url} isSquare />
+      <Avatar src={url} isSquare />
+      <Avatar src={url} isSquare />
+      <Avatar src={url} isSquare />
+    </>
+  )
+}
+`} />
+
+
+<Playground
+ title="Size"
+ desc="You can specify different sizes of `Avatar`."
+ scope={{ Avatar }}
+ code={`
+() => {
+  const url = 'https://zeit.co/api/www/avatar/?u=evilrabbit&s=160'
+  return (
+    <>
+      <Avatar src={url} size="mini" />
+      <Avatar src={url} size="small" />
+      <Avatar src={url} size="medium" />
+      <Avatar src={url} size="large" />
+    </>
+  )
+}
+`} />
+
+<Playground
+  title="Text"
+  scope={{ Avatar }}
+  code={`
+<>
+  <Avatar text="W" />
+  <Avatar text="A" />
+  <Avatar text="W" />
+  <Avatar text="Joe" />
+</>
+`} />
+
+
+<Playground
+  title="Stacked"
+  desc="Multiple avatars can overlap and stack together."
+  scope={{ Avatar }}
+  code={`
+() => {
+  const url = 'https://zeit.co/api/www/avatar/?u=evilrabbit&s=160'
+  return (
+    <>
+      <Avatar src={url} stacked />
+      <Avatar src={url} stacked />
+      <Avatar src={url} stacked />
+      <Avatar src={url} stacked />
+    </>
+  )
+}
+`} />
+
+<Attributes edit="/pages/docs/components/avatar.mdx">
+<Attributes.Title>Avatar.Props</Attributes.Title>
+
+| Attribute | Description | Type | Accepted values | Default
+| ---------- | ---------- | ---- |  -------------- | ------ |
+| **src** | image src | `string` | - | - |
+| **stacked** | stacked display group | `boolean` | - | `false` |
+| **text** | display text when image is missing | `string` | - | - |
+| **size** | avatar size | `string` / `number` | `'mini', 'small', 'medium', 'large', number` | `medium` |
+| **isSquare** | avatar shape | `boolean` | - | `false` |
+| ... | native props | `ImgHTMLAttributes` | `'alt', 'crossOrigin', 'className', ...` | - |
+
+</Attributes>
+
+export default ({ children }) => <Layout meta={meta}>{children}</Layout>