div.container {
    width: 100%;
    border: 1px solid gray;
}

header, footer {
    padding: 0.25em;
    color: rgb(236, 252, 6);
    background-color:#6600cc;
    clear: left;
    text-align: center;
 
    /* klasieke menu */
}
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

.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;
} 
 
/* einde klassieke menu */

/* 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.box {
    float: left;
    background-color: lightgrey;
    width: 20%;
    border: 1px solid green;
    padding: 10px;
    margin: 6px;
    font-size: 24px;
    font-weight: bold;
}

  
div.article {
    margin-left: 10px;
    border-left: 1px solid gray;
    padding: 1em;
    overflow: hidden;
    font-size: 1.5vw;
}

@media screen and (max-width: 600px) {
  div.article {
	font-size: 3vw;
  }
}

img:hover {
transform: scale(2.0);
position: relative;
left: 10px;
}

.videob1 {
  float: left;
  width: 25%;
  height: 300px;
  border: thin silver solid;
  margin: 0.5em;
  padding: 0.5em;
}

/* On screens that are 600px wide or less, make video full width */
@media screen and (max-width: 600px) {
  .videob1 {
    width: 100%;
  }
 }

 .videob2 {
  float: left;
  width: 50%;
  height: 600px;
  border: thin silver solid;
  margin: 0.5em;
  padding: 0.5em;
}

div.textbox {
  float: left;
  background-color: lightgrey;
  width: 100%;
  height: 70px; 
/*	height: 10%; */
  padding: 10px;
  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: 40px; 
  }
 }
 
img {
  float: left; 
  width:15%; 
  margin-right: 1%; 
  margin-bottom: 0.5em;

 }
 @media screen and (max-width: 600px) {
  img {
	  width:50%;
  }
}
h7 {
  color: black;
  font-size: 1.5em;
  text-align: center;
  font-weight: bold; 
  color: yellow;
  background-color: #f18973;
}