Environment(required)

• antd-mobile version: 1.0.0
• Browser (or mark react-native) and its version: Google Chrome 56.0.2924.87 (64-bit)
• Operating environment (e.g. OS name) and its version: Mac OS Sierra

What did you do? Please provide steps to re-produce your problem.

I have set a className prop to <Tabs/> component, and it worked fine (version 0.9.13). But when I update antd-mobile to 1.0.0, the custom class has gone...

What do you expected?

What happen?

Re-producible online demo

see it:
http://codepen.io/CodingMonkeyzh/pen/GrVNZP?editors=0010