body {
  font-family: Verdana, sans-serif;
  margin: 0;
}

/* I added this .main class  to wrap around the images */
.main {
  max-width: 1200px;
  margin: auto;
  overflow: hidden;
    margin-top: 0px;
}
/* --------------------- */


* {
  box-sizing: border-box;
}

.row > .column {
  padding: 0 8px;
    margin-top: 8px;
    margin-bottom: 8px;
}

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

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

/* Added responsiveness for the column) */
@media only screen and (max-width: 900px) {
  .column {
    width: 49.99999%;
    margin: 6px 0;
  }
}

@media only screen and (max-width: 600px) {
  .column {
    width: 100%;
  }
}



/* 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: white;
    
  overflow: hidden; /* Hide scrollbars */

}

/* Modal Content*/
.modal-content {
  position: relative;
  background-color: white;
  margin: auto;
  padding: 0px;
  width: 100%;
  max-width: 1000px;
  top: -20px;
  
    
}

/* The Close Button */
.close {
  color: black;
  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;*/
  display: flex;
  justify-content: center;
  align-items: center;
  height: 800px;
}

.cursor {
  cursor: pointer;
}

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

/* Position the "next button" 60 pixels up and more to the center */
.next {
  right: 0;
    margin-right: 120px;
    margin-top: -40px;
  border-radius: 0px 3px 3px 0px;
}

/* Position the "prev button" 60 pixels up and more to the center */
.prev {
    margin-left: 120px;
    margin-top: -40px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

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

img {
  margin-bottom: 0px;
}

/*Deze caption containter heb is tijdelijk hidden
.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 {
    opacity: 0.5;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}