@media (max-width: 800px)
{
  .mg-top{
    margin-top: 200px;
  }
}

.photogallery img {
  width:100%;
  height:250px;
  margin: 5px;
  transition:all 1s ease;
  border-radius: 3px;
}


.photogallery {
  display:flex;
  align-content: flex-start;
  flex-flow: row wrap;
}