.login {

  > .box {
    margin: 0 auto;
    position: relative;
    top: 50px;
    width: 250px;
    background: #fff;
    padding: 0 10px;
    border: 1px solid #aaa;
    @include box-sizing(border-box);
    @include box-shadow(rgba(#000, 0.15) 0 1px 40px);
    @include border-radius(3px);

    button {
      display: block;
      margin: 0 auto;
    }
  }
}
