.popup {
  background-color: #2d2d2d;
  width: 450px;
  padding: 30px 40px;
  position: absolute;
  transform: translate(-50%,-50%);
  left: 50%;
  top: 350px;
  border-radius: 10px;
  z-index: 20;
}

.popup button {
  display: block;
  margin: -30px -20px 10px auto;
  background-color: transparent;
  font-size: 30px;
  color: #c5c5c5;
  border: none;
  outline: none;
  cursor: pointer;
}

.popup h2 {
  color: #fff;
}

.popup p {
  color: #fff;
  margin: 20px 0;
}