* {
  box-sizing: border-box;
}
body {
  background-color: #ecf0f1;
}
.gallery-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  background-color: #fff;
  box-shadow: 0 0 3px 0 rgba(0, 0, 0, 0.3);
  width: 80%;
  margin: 0 auto;
  padding: 10px;
}
.gallery-item {
  flex-basis: 32.7%;
  margin-bottom: 6px;
  opacity: 0.85;
  cursor: pointer;
}
.gallery-item:hover {
  opacity: 1;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-content {
  font-size: 0.8em;
}

.lightbox {
  position: fixed;
  display: none;
  background-color: rgba(0, 0, 0, 0.8);
  width: 100%;
  height: 100%;
  overflow: auto;
  top: 0;
  left: 0;
  z-index: 5000;
}
.lightbox-content {
  position: relative;
  width: 50%;
  height: 78%;
  margin: 5% auto;
}
.lightbox-content img {
  border-radius: 7px;
  box-shadow: 0 0 3px 0 rgba(225, 225, 225, 0.25);
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background-color: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 20px;
  top: 45%;
  cursor: pointer;
  width: 5%;
  height: 10%;
}
.lightbox-prev {
  left: 0;
}
.lightbox-next {
  right: 0;
}
.lightbox-prev:hover,
.lightbox-next:hover {
  opacity: 0.8;
}

@media (max-width: 767px) {
  .gallery-container {
    width: 100%;
  }
  .gallery-item {
    flex-basis: 49.8%;
    margin-bottom: 3px;
  }
  .lightbox-content {
    width: 80%;
    height: 60%;
    margin: 15% auto;
  }
}
@media (max-width: 480px) {
  .gallery-item {
    flex-basis: 100%;
    margin-bottom: 1px;
  }
  .lightbox-content {
    width: 90%;
    margin: 20% auto;
  }
}
body {
  font-family: Verdana, sans-serif;
  margin: 0;
}

* {
  box-sizing: border-box;
}
.row {
  width: 100%;
}

.row > .column {
  padding: 8px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

.column {
  float: left;
  width: 25%;
}

/* The Modal (background) */
.modal {
  display: none;
  position: fixed;
  z-index: 1;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: black;
}

/* Modal Content */
.modal-content {
  position: relative;
  background-color: #fefefe;
  margin: auto;
  padding: 0;
  width: 90%;
  max-width: 1200px;
}

/* The Close Button */
.close {
  color: white;
  position: absolute;
  top: 10px;
  right: 25px;
  font-size: 35px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: #999;
  text-decoration: none;
  cursor: pointer;
}

.mySlides {
  display: none;
}

.cursor {
  cursor: pointer;
}

/* Next & previous buttons */
.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
  -webkit-user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

img {
  margin-bottom: -4px;
}

.caption-container {
  text-align: center;
  background-color: black;
  padding: 2px 16px;
  color: white;
}

.demo {
  opacity: 0.6;
}

.active,
.demo:hover {
  opacity: 1;
}

img.hover-shadow {
  transition: 0.3s;
}

.hover-shadow:hover {
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2),
    0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

.item1 {
  grid-area: header;
}
.item2 {
  grid-area: menu;
}
.item3 {
  grid-area: main;
}
.item4 {
  grid-area: right;
}
.item5 {
  grid-area: footer;
}

.grid-container {
  display: grid;
  grid-template-areas:
    "header header header header header header"
    "menu main main main right right"
    "menu footer footer footer footer footer";
  gap: 10px;
  background-color: #2196f3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}