.gall {
  width:auto;
  max-width:150px;
  height:auto;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgb(0,0,0);
  background-color: rgba(0,0,0,0.9);
} 

.modcon {
  margin: auto;
  display: block;
  width: auto;
  max-width: 100%;
}

@keyframes zoom {
  from {transform:scale(0)}
  to {transform:scale(1)}
} 

#caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  height: 150px;
} 

.close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
} 

.close:hover, .close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
} 

@media only screen and (max-width: 700px){
  .modcon { width: auto; }
}