diff --git a/Readme.md b/Readme.md
index 1e3bd61..a34375a 100644
--- a/Readme.md
+++ b/Readme.md
@@ -19,7 +19,7 @@
 - [x] `wc-space`间隔组件
 - [ ] `wc-avatar`头像组件
 - [x] `wc-badge`徽标组件
-- [ ] `wc-drawer`抽屉组件
+- [x] `wc-drawer`抽屉组件
 - [ ] `wc-collapse`折叠组件
 - [ ] `wc-counter`倒计时组件
 - [ ] `wc-drag`拖拽组件
diff --git a/package.json b/package.json
index df00c48..618f3e3 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "@bd/wcui",
+  "name": "@bd/ui",
   "version": "1.0.0",
   "description": "",
   "files": [
diff --git a/src/drag/core.js b/src/drag/core.js
new file mode 100644
index 0000000..c0511bb
--- /dev/null
+++ b/src/drag/core.js
@@ -0,0 +1,137 @@
+/**
+ * 拖拽插件的核心部分
+ * @author yutent<yutent.io@gmail.com>
+ * @date 2019/08/23 19:41:21
+ */
+
+import { $, bind, unbind, fire } from '@bd/core'
+
+const DEF_OPT = {
+  axis: '', // x | y | xy 拖拽方向
+  limit: false, // false | window | parent 拖拽范围
+  overflow: true // 是否可拖拽出可视区外
+}
+
+export default class Drag {
+  constructor(elem) {
+    this.$elem = elem
+
+    this.#init()
+  }
+
+  #init() {
+    this.$elem.style.transform = ''
+    var { x, y } = this.$elem.getBoundingClientRect()
+    // _x, _y是位移,用于数据修正
+    this.pos = { x, y, _x: 0, _y: 0 }
+  }
+
+  // drag by
+  by(node, opt = {}) {
+    this.$drag = node
+    this.opt = Object.assign(Object.create(null), DEF_OPT, opt)
+
+    //
+    if (this.opt.limit !== false) {
+      this.opt.overflow = false
+    }
+
+    // 鼠标状态图标
+    node.style.cursor = 'move'
+
+    this._handleResize = bind(window, 'resize', this.#init.bind(this))
+
+    // let
+    this._handleMousedown = bind(node, 'mousedown', ev => {
+      if (this.disabled) {
+        return
+      }
+      var bcr = this.$elem.getBoundingClientRect()
+
+      /* 修正由于页面有滚动距离,导致拖拽位移计算不正确的情况 */
+      if (bcr.x - this.pos._x !== this.pos.x) {
+        this.pos.x = bcr.x - this.pos._x
+      }
+      if (bcr.y - this.pos._y !== this.pos.y) {
+        this.pos.y = bcr.y - this.pos._y
+      }
+
+      let mx = ev.pageX
+      let my = ev.pageY
+
+      let ww = document.documentElement.clientWidth
+      let wh = document.documentElement.clientHeight
+
+      let tw = bcr.width
+      let th = bcr.height
+
+      //限制区域, 4个值依次是: 上, 右, 下, 左
+      let limit = [0, ww - tw, wh - th, 0]
+      if (this.opt.limit === 'parent') {
+        let pbcr = this.$elem.parentNode.getBoundingClientRect()
+        limit = [pbcr.top, pbcr.right - tw, pbcr.bottom - th, pbcr.left]
+      }
+
+      let handleMove = bind(document, 'mousemove', ev => {
+        // 防止拖动到边缘时导致页面滚动
+        ev.preventDefault()
+
+        let _x = ev.pageX - mx + (bcr.x - this.pos.x)
+        let _y = ev.pageY - my + (bcr.y - this.pos.y)
+
+        // 将另外一个方向的值清零来实现单向拖拽
+        if (this.opt.axis === 'x') {
+          _y = 0
+        }
+        if (this.opt.axis === 'y') {
+          _x = 0
+        }
+
+        // 限制不可拖拽出指定区域(可视区或者父容器)
+        if (this.opt.overflow === false) {
+          if (_x < limit[3] - this.pos.x) {
+            _x = limit[3] - this.pos.x
+          } else if (_x > limit[1] - this.pos.x) {
+            _x = limit[1] - this.pos.x
+          }
+
+          if (_y < limit[0] - this.pos.y) {
+            _y = limit[0] - this.pos.y
+          } else if (_y > limit[2] - this.pos.y) {
+            _y = limit[2] - this.pos.y
+          }
+        }
+        this.pos._x = _x
+        this.pos._y = _y
+        fire(this.$elem, 'dragging', {
+          offset: {
+            x: this.pos.x + _x,
+            y: this.pos.y + _y
+          },
+          moved: { x: _x, y: _y }
+        })
+        this.$elem.style.transform = `translate(${_x}px, ${_y}px)`
+      })
+
+      let handleUp = bind(document, 'mouseup', ev => {
+        fire(this.$elem, 'dragged', {
+          offset: {
+            x: this.pos.x + this.pos._x,
+            y: this.pos.y + this.pos._y
+          },
+          moved: { x: this.pos._x, y: this.pos._y }
+        })
+
+        unbind(document, 'mousemove', handleMove)
+        unbind(document, 'mouseup', handleUp)
+      })
+    })
+
+    return this
+  }
+
+  destroy() {
+    unbind(window, 'resize', this._handleResize)
+    unbind(this.$drag, 'mousedown', this._handleMousedown)
+  }
+}
diff --git a/src/drawer/index.js b/src/drawer/index.js
index fe90fd8..45f5b5c 100644
--- a/src/drawer/index.js
+++ b/src/drawer/index.js
@@ -4,37 +4,56 @@
  * @date 2023/03/27 10:39:29
  */
 
-import {
-  css,
-  html,
-  bind,
-  unbind,
-  Component,
-  outsideClick,
-  clearOutsideClick,
-  nextTick,
-  classMap,
-  styleMap
-} from '@bd/core'
+import { css, html, Component, nextTick, styleMap } from '@bd/core'
 
-const DIRECTION = {
-  left: 'l2r-in',
-  right: 'r2l-in',
-  top: 't2b-in',
-  bottom: 'b2t-in'
+const ANIMATION = {
+  left: {
+    custom: [
+      { transform: ' translateX(-100%)' },
+      { transform: ' translateX(0)' }
+    ]
+  },
+  right: {
+    custom: [
+      { transform: ' translateX(100%)' },
+      { transform: ' translateX(0)' }
+    ]
+  },
+  top: {
+    custom: [
+      { transform: ' translateY(-100%)' },
+      { transform: ' translateY(0)' }
+    ]
+  },
+  bottom: {
+    custom: [
+      { transform: ' translateY(100%)' },
+      { transform: ' translateY(0)' }
+    ]
+  }
 }
 
 class Drawer extends Component {
+  static animation = {}
   static props = {
-    title: { type: String, default: '', attribute: false },
+    title: '',
     from: 'right',
-    visible: false
+    visible: {
+      type: Boolean,
+      default: false,
+      observer(v) {
+        this.$anim.start(!v)
+        this.$refs.drawer.$anim.start(!v)
+      }
+    },
+    width: '',
+    height: '',
+    'mask-close': false
   }
 
   static styles = [
     css`
       :host {
-        display: none;
         position: fixed;
         left: 0;
         top: 0;
@@ -42,9 +61,8 @@ class Drawer extends Component {
         width: 100%;
         height: 100%;
         background: rgba(0, 0, 0, 0.3);
-        transition: opacity 0.3s linear;
-        opacity: 0;
       }
+
       .drawer {
         display: flex;
         flex-direction: column;
@@ -54,19 +72,6 @@ class Drawer extends Component {
         font-size: 14px;
         background: #fff;
         box-shadow: 0 0 24px rgba(0, 0, 0, 0.2);
-
-        &.l2r-in {
-          animation: l2r-in 0.3s ease-in-out forwards;
-        }
-        &.r2l-in {
-          animation: r2l-in 0.3s ease-in-out forwards;
-        }
-        &.t2b-in {
-          animation: t2b-in 0.3s ease-in-out forwards;
-        }
-        &.b2t-in {
-          animation: b2t-in 0.3s ease-in-out forwards;
-        }
       }
 
       .header {
@@ -90,11 +95,6 @@ class Drawer extends Component {
         flex: 1;
         padding: 16px;
       }
-
-      :host([visible]) {
-        display: block;
-        opacity: 1;
-      }
     `,
     css`
       :host([from='left']),
@@ -131,40 +131,6 @@ class Drawer extends Component {
         bottom: 0;
         transform: translateY(100%);
       }
-    `,
-    css`
-      @keyframes r2l-in {
-        from {
-          transform: translateX(100%);
-        }
-        to {
-          transform: translateX(0);
-        }
-      }
-      @keyframes l2r-in {
-        from {
-          transform: translateX(-100%);
-        }
-        to {
-          transform: translateX(0);
-        }
-      }
-      @keyframes b2t-in {
-        from {
-          transform: translateY(100%);
-        }
-        to {
-          transform: translateY(0);
-        }
-      }
-      @keyframes t2b-in {
-        from {
-          transform: translateY(-100%);
-        }
-        to {
-          transform: translateY(0);
-        }
-      }
     `
   ]
 
@@ -173,24 +139,35 @@ class Drawer extends Component {
   }
 
   mounted() {
-    console.log('mounted title: ', this.title)
+    this.$on('click', ev => {
+      let path = ev.composedPath()
+
+      if (path[0] === ev.currentTarget && this['mask-close']) {
+        this.closeDrawer()
+      }
+    })
   }
 
   render() {
-    let classes = classMap({
-      drawer: true,
-      [DIRECTION[this.from]]: this.visible
-    })
+    let style = {}
+    if ((this.from === 'left' || this.from === 'right') && this.width) {
+      style = { width: this.width }
+    } else if ((this.from === 'top' || this.from === 'bottom') && this.height) {
+      style = { height: this.height }
+    }
 
     return html`
-      <div class=${classes}>
+      <div
+        class="drawer"
+        style=${styleMap(style)}
+        ref="drawer"
+        #animation=${ANIMATION[this.from]}
+      >
         <header class="header">
           <span class="title"><slot name="title">${this.title}</slot></span>
           <wc-icon name="close" @click=${this.closeDrawer}></wc-icon>
         </header>
-        <main class="wrapper">
-          <slot></slot>
-        </main>
+        <main class="wrapper"><slot></slot></main>
       </div>
     `
   }
diff --git a/src/form/checkbox.js b/src/form/checkbox.js
index 5cc1012..ee505fd 100644
--- a/src/form/checkbox.js
+++ b/src/form/checkbox.js
@@ -79,7 +79,6 @@ class CheckboxItem extends Component {
       :host {
         display: inline-flex;
         align-items: center;
-        line-height: 1;
         font-size: 14px;
         cursor: pointer;
 
diff --git a/src/form/radio.js b/src/form/radio.js
index cbb7bf0..30a7839 100644
--- a/src/form/radio.js
+++ b/src/form/radio.js
@@ -76,7 +76,6 @@ class RadioItem extends Component {
       :host {
         display: inline-flex;
         align-items: center;
-        line-height: 1;
         font-size: 14px;
         cursor: pointer;
 
diff --git a/src/form/switch.js b/src/form/switch.js
index 1e2385d..1624ba2 100644
--- a/src/form/switch.js
+++ b/src/form/switch.js
@@ -13,7 +13,6 @@ class Switch extends Component {
       default: '',
       attribute: false
     },
-    checked: false,
     disabled: false,
     readonly: false
   }
@@ -23,7 +22,6 @@ class Switch extends Component {
       :host {
         display: inline-flex;
         align-items: center;
-        line-height: 1;
         font-size: 14px;
         cursor: pointer;
 
@@ -46,26 +44,13 @@ class Switch extends Component {
           display: flex;
           justify-content: center;
           align-items: center;
-          width: 14px;
-          height: 14px;
-          margin-right: 4px;
-          border: 1px solid var(--color-dark-1);
-          border-radius: 4px;
-          background: #fff;
+          width: 36px;
+          height: 18px;
+          padding: 3px;
+          margin-right: 5px;
+          border-radius: 16px;
+          background: var(--color-dark-1);
           transition: box-shadow 0.15s linear;
-
-          wc-icon {
-            display: block;
-            visibility: hidden;
-            width: 10px;
-            height: 10px;
-            transform: scale(0);
-            transition: transform 0.15s linear;
-          }
-        }
-        &:host([checked]) .dot wc-icon {
-          visibility: visible;
-          transform: scale(1);
         }
       }
     `,
@@ -112,8 +97,8 @@ class Switch extends Component {
           font-size: map.get($v, 'f');
 
           .dot {
-            width: #{map.get($v, 'f')};
-            height: #{map.get($v, 'f')};
+            width: #{map.get($v, 'f') * 2.5};
+            height: #{map.get($v, 'f') * 1.25};
           }
         }
       }
@@ -133,15 +118,11 @@ class Switch extends Component {
       @loop $t, $c in $colors {
         :host([type='#{$t}']) {
           label {
-            color: var(--color-#{$c}-2);
+            color: var(--color-#{$c}-1);
           }
 
           .dot {
-            border-color: var(--color-#{$c}-2);
-
-            &::after {
-              background: var(--color-#{$c}-2);
-            }
+            background: var(--color-#{$c}-1);
           }
 
           &:host(:focus-within) .dot {
@@ -201,7 +182,7 @@ class Switch extends Component {
       @click=${this.handleClick}
       @keydown=${this.handleClick}
     >
-      <span class="dot"><wc-icon name="get"></wc-icon></span>
+      <span class="dot"></span>
       <slot></slot>
     </label>`
   }