.feedback_form {
  z-index: 1;
  display: none;
  width: 270px;
  background-color: #99CCCC;
  border: 1px solid #339999;
  padding: 12px;
  border-radius: 6px;
  text-align: left;
  margin: 4px auto auto;
}

.feedback_form textarea {
  width: 260px;
  height: 100px;
}

.feedback_form input[type=email] {
  width: 260px;
}

.feedback_form .button {
  text-align: center;
  margin: auto;
}

@media screen and (max-width: 600px) {
  .feedback_form {
    width: 84vw;
  }

  .feedback_form textarea {
    width: 80vw;
  }

  .feedback_form input[type=email] {
    width: 80vw;
  }
}