h1{
  margin-left: 40px;
  font-size:  25px;
  color:#0c413f;
}



label[for] { cursor: pointer; }

input[type="checkbox"] { display: none; }

.lightbox {
  width: 100%;
  position:fixed;
  min-height: 100%;
  z-index: 1;
  overflow: auto;
  -webkit-transform: scale(0);
  -ms-transform: scale(0);
  transform: scale(0);
  -webkit-transition: -webkit-transform .5s ease-out;
  transition: transform .5s ease-out;
}

.lightbox img {
  position: fixed;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  max-width: 96%;
  max-height: 96%;
  box-shadow: 0 2px 8px rgba(204, 204, 204, 0.25);
}

input[type="checkbox"]:checked + .lightbox {
  -webkit-transform: scale(1);
  -ms-transform: scale(1);
  transform: scale(1);
}

input[type="checkbox"]:checked ~ .grid { opacity: .125; }

.grid {
  width: 90%;
  position: fix;
  height: fit;
  z-index: 0;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-align-items: flex-start;
  -ms-flex-align: start;
  align-items: flex-start;
  -webkit-align-content: flex-start;
  -ms-flex-line-pack: start;
  align-content: flex-start;
  padding: 16px;
  overflow: auto;
  text-align: center;
  -webkit-transition: opacity .5s;
  transition: opacity .5s;
}

.grid .grid-item {
  width: 20%;
  display: inline-block;
  padding: 16px;
  opacity: .75;
  -webkit-transition: opacity .5s;
  transition: opacity .5s;
}

.grid .grid-item:hover { opacity: 1; }
@media screen and (max-width: 1024px) {

.grid .grid-item { width: 50%; }
}
@media screen and (max-width: 480px) {

.grid .grid-item { width: 100%; }
}

.grid img {
  max-width: 100%;
  max-height: 100%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}