你得这个class样式是怎么写得
实际上的结果: 可重现的在线演示 warmhugassignedpingan1927Oct 25, 2016 pingan1927closed this ascompletedin492ec54Nov 1, 2016 warmhugreopened thisJan 19, 2017 pingan1927added a commit that referenced this issueFeb 14, 2017 fix input placeholder style#426 ...