问题是我的链接会转换，但在register链接上它不会转换回来。单击"You have an account already? Log in here"链接并清楚地观察它的转换，但随后单击"You don't have an account yet? Register here"链接，您会看到问题-jsFiddle
您忘记在第一个表单上设置类.register-DEMO
<form class="container register active" method="post">