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🐛 [Bug]: 输出的代码顶层带了个div，这个要能添加样式且出码的时候能在，因为实际场景中，我们会配置侧边导航，会用height: 100%;目前大多数市面上的后台管理系统antdesign pro多有将#app设置高度100%，才方便内容编排
Environment
chrome
Version
latest
Version
latest
Link to minimal reproduction
代码顶层带了个div，希望有地方定制样式并且输出后能保留，最好默认就height: 100%;，输出也在
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What is actually happening
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Title: 🐛 [Bug]: The output code has a div on the top level. This must be able to add styles and be available when the code is output, because in the actual scenario, we will configure the side navigation and use height: 100%; Most of the backend management systems antdesign pro currently on the market have the #app height set to 100% to facilitate content arrangement.
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Bot detected the issue body's language is not English, translate it automatically.
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