If you want to ask a question, please read [some tips](https://github.com/ant-design/ant-design/blob/master/.github/CONTRIBUTING.md#do-your-homework-before-asking-a-question) first :-) If you are going to report a bug, please answer the following questions, thank you! ## What you did (e.g. I ate a hamburger) ## What you would like to happen (e.g. I should be full) ## What actually happened (e.g. But I am still hungry now T_T) ## Online demo (e.g. http://codepen.io/anon/pen/pgdXYp?editors=001) ## Environment Information - The version of antd(e.g. 0.12.0): - Your operating system and it's version(e.g. OSX 10.11.0): - Your browser and it's version(e.g. Chrome 48.0.0.0(64-bit)):