.close {
  position: absolute;
  top: 0;
  left: 50%;
  color: #ccc;
  float: right;
  font-size: 30px;
  color: #fff;
}

.close:hover,
.close:focus {
  color: #000;
  text-decoration: none;
  cursor: pointer;
}
#thanks {
  position: relative;
  justify-content: center;
  align-items: center;
  margin-left: auto;
  margin-right: auto;
  margin-top: 10%;
  display: none;
  width: 300px;
  height: 200px;
  background: #4b5159;
  z-index: 1000;
}
#thanks p {
  line-height: 45px;
  padding: 50px 10px;
  margin: auto;
  width: 100%;
  text-align: center;
  color: #fff;
}