.overlay {
  position: fixed;
    z-index: 9999;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity 500ms;
  visibility: hidden;
  opacity: 0;
}
.overlay:target {
  visibility: visible;
  opacity: 1;
}
.popup {
  margin: 70px auto;
  margin-top:10rem;
  padding: 20px;
  background: #fff;
  border-radius: 1em;
  max-width: 90vw;
  max-height: 80vh;
  position: relative;
  transition: all 5s ease-in-out;

}

.overlay:target .popup {
  animation: popup 0.7s;
}
.popup h2 {
  margin-top: 0;
  color: #333;
  font-family: Tahoma, Arial, sans-serif;
}
.popup .close {
  position: absolute;
  top: 20px;
  right: 30px;
  transition: all 200ms;
  font-size: 30px;
  font-weight: bold;
  text-decoration: none;
  color: #333;
}
.popup .close:hover {
  color: #06D85F;
}
.popup .content {
  max-height: 70vh;
  overflow: auto;
}
.popup .content img {
    width: 100%;
}
@media screen and (max-width: 700px) {
  /*.box {*/
  /*  width: 70%;*/
  /*}*/
  .popup {
    width: 80%;
  }
    .popup .content img {
        width: 300vw;
    }
}