
* {
  box-sizing: border-box;
}
header, footer {
    padding: 0.2em; 
    color: white;
    background-color:#6600cc;
    clear: left; 
    text-align: center;
    width: 100%;
	height: 80px;
}

/* Create four equal columns that floats next to each other */
.column {
  float: left;
  width: 25%;
  padding: 20px;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

/* On screens that are 992px wide or less, go from four columns to two columns */
@media screen and (max-width: 992px) {
  .column {
    width: 50%;
    }
}

/* On screens that are 600px wide or less, make the columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
  .column {
    width: 100%;
  }
 }


div.titelbox {
    float: left;
    background-color: lightgrey;
    width: 100%;
    height: 70px; 
/*	height: 10%; */
	  padding: 10px;
	  margin: 6px;
    border: 1px dotted black;
    font-size: 1.2vw;
	  font-weight: bold;
}

@media screen and (max-width: 600px) {
  div.titelbox {
    height: 10%;
	font-size: 3vw;
  }
 }
 
div.box1 {
float: left;
    background-color: #eee;
    width: 100%;
    height: 150px;
	  padding: 10px;
	  margin: 6px;
    border: 1px dotted black;
	font-size: 1.2vw;
    overflow-x: hidden;
    overflow-y: scroll;
}

@media screen and (max-width: 600px) {
  div.box1 {
   /* height: 10%; */
	font-size: 3vw;
  }
 }

 
div.picture1 {
    float: left;
    width: 100%;
    border: thin silver solid;
    margin: 0.5em;
    padding: 0.5em;
}

img.scaled {
width: 100%;
}


.topnav {
  overflow: hidden;
  background-color: #333;
}

.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #4CAF50;
  color: white;
} 
/* nieuwe gordijn menu */


.overlay {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: rgb(1, 0, 7);
  background-color: rgba(1,0,7, 0.9);
  overflow-x: hidden;
  transition: 0.5s;
}

.overlay-content {
  position: relative;
  top: 25%;
  width: 100%;
  text-align: center;
  margin-top: 20px;
}

.overlay a {
  padding: 8px;
  text-decoration: none;
  font-size: 18px;
  color: #f9f9fc;
  display: block;
  transition: 0.3s;
}

.overlay a:hover, .overlay a:focus {
  color: #03fa0b;
}

.overlay .closebtn {
  position: absolute;
  top: 20px;
  right: 45px;
  font-size: 48px;
}

/* einde nieuwe gordijnmenu */
div.textbox {
  float: left;
  background-color: lightgrey;
  width: 100%;
  height: 100px; 
/*	height: 10%; */
  padding: 5px;
  margin: 6px;
  border: 1px dotted black;
  font-size: 2.0vw;
  font-weight: bold;
  text-align: center;
}

@media screen and (max-width: 600px) {
  div.textbox {
   /* height: 10%; */
	font-size: 4vw;
  height: 100px; 
  }
 }