#overlay {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: transparent;
  opacity: 0;
  transition:
    opacity 0.4s ease-in-out,
    visibility 0.4s ease-in-out;
}

#overlay > .cover {
  width: 100%;
  height: 100%;
  background: transparent;
  transition: opacity 0.4s ease-in-out;
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

#overlay > .cover > img {
  width: 60%;
  opacity: 1;
}

#overlay > .cover > button {
  width: 50%;
  opacity: 1;
  background-color: #49485d;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 25px;
  width: 300px;
  height: 30px;
  font-size: 15px;
  font-family: "Avenir-Black", sans-serif;
  letter-spacing: 1px;
  transition: opacity 0.4s ease-in-out;
}