.login_form{
  width: 450px;
  margin: 0 auto;
  border: 1px solid #e6e6e6;
  padding: 30px;
  border-radius: 3px;
  box-sizing: border-box;
  background: rgba(255,255,255,.5);
}

.login_bg{
  display: flex;
  align-items: center;
}

.login_box .big_title{
 text-align: center;
  width: 100%;
  font-size: 36px;
  margin-bottom: 30px;
  color: #fff;
  margin-top: 10px;
}
.login_logo{
  width: 100%;
  text-align: center;
}
.forget_password_text{
  position: fixed;
  bottom: 30px;
  width: 100%;
  text-align: center;
  left: 0;
}