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  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# `ui.element`\n",
    "\n",
    "## 通用元素\n",
    "\n",
    "这个类是所有其他UI元素的基类。但是，您可以使用它来创建具有任意HTML标签的元素。\n",
    "\n",
    "- `tag`：元素的HTML标签\n",
    "- `_client`：此元素的客户端（仅用于内部使用）"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "from nicegui import ui\n",
    "\n",
    "with ui.element('div').classes('p-2 bg-blue-100'):\n",
    "    ui.label('inside a colored div')\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 移动元素\n",
    "\n",
    "此演示展示了如何在容器之间或在容器内移动元素。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<nicegui.elements.button.Button at 0x2bc208f8310>"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from nicegui import ui\n",
    "\n",
    "with ui.card() as a:\n",
    "    ui.label('A')\n",
    "    x = ui.label('X')\n",
    "\n",
    "with ui.card() as b:\n",
    "    ui.label('B')\n",
    "\n",
    "ui.button('Move X to A', on_click=lambda: x.move(a))\n",
    "ui.button('Move X to B', on_click=lambda: x.move(b))\n",
    "ui.button('Move X to top', on_click=lambda: x.move(target_index=0))\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 默认属性\n",
    "\n",
    "您可以为某个类的所有元素设置默认属性。这样，您就可以避免一遍又一遍地重复相同的属性。\n",
    "\n",
    "默认属性仅适用于在设置默认属性后创建的元素。子类继承其父类的默认属性。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<nicegui.elements.button.Button at 0x2bc34c53690>"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from nicegui import ui\n",
    "\n",
    "ui.button.default_props('rounded outline')\n",
    "ui.button('Button A')\n",
    "ui.button('Button B')\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 默认类\n",
    "\n",
    "您可以为某个类的所有元素设置默认类。这样，您就可以避免一遍又一遍地重复相同的类。\n",
    "\n",
    "默认类仅适用于在设置默认类后创建的元素。子类继承其父类的默认类。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<nicegui.elements.label.Label at 0x2bc33a75f50>"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from nicegui import ui\n",
    "\n",
    "ui.label.default_classes('bg-blue-100 p-2')\n",
    "ui.label('Label A')\n",
    "ui.label('Label B')\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 默认样式\n",
    "\n",
    "您可以为某个类的所有元素设置默认样式。这样，您就可以避免一遍又一遍地重复相同的样式。\n",
    "\n",
    "默认样式仅适用于在设置默认样式后创建的元素。子类继承其父类的默认样式。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<nicegui.elements.label.Label at 0x2bc34c61190>"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "from nicegui import ui\n",
    "\n",
    "ui.label.default_style('color: tomato')\n",
    "ui.label('Label A')\n",
    "ui.label('Label B')\n",
    "\n",
    "# ui.run()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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