title: Antd Drawer Style not being applied
body: <p>I am a bit puzzled when following the documentation <a href="https://ant.design/components/drawer/" rel="nofollow noreferrer">here</a>. Everything seems to work other than the headerStyle attribute. It doesn't seem to be applying to styles that I apply to it. I'm not sure where I am going wrong.</p>
  
  <p>Checking CodeSandbox from one of the examples provided headerStyle works. Where else can I check to understand what is causing this issue?</p>
  
  <p><a href="https://i.stack.imgur.com/4F9p7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4F9p7.png" alt="enter image description here"></a></p>
  
  <p>Localhost:</p>
  
  <p><a href="https://i.stack.imgur.com/oVgwj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oVgwj.png" alt="enter image description here"></a></p>
  
  <p>Codesandbox:</p>
  
  <p><a href="https://codesandbox.io/s/modest-violet-12fum?fontsize=14" rel="nofollow noreferrer"><img src="https://codesandbox.io/static/img/play-codesandbox.svg" alt="Edit modest-violet-12fum"></a></p>