body {
  font-family: Arial, Helvetica, sans-serif;
}

/* Style the header */
.header {
  background-color: #333333;
  padding: 0px;
  margin: 0px;
  text-align: center;
  color: yellow;
}

.container {
    display: table;
    width: 100%;
 }

/* Left column */
.sidev {

  width: 25%;
  background-color:#aaa;
  display: table-cell;
}

/* Middle column */
.sidem {

  width: 55%;
  background-color:#bbb;
  display: table-cell;
}

/* Right column */
.sideh {
  
  width: 20%;
  background-color:#ccc;
  display: table-cell;
}

/* Style the footer */
.footer {

  background-color: #f1f1f1;
  padding: 10px;
  text-align: center;
}

#datoen {
    color: black;
}

img {
    margin:0px;
}

h1, h2, h3, h4 {
    margin:5px;
    padding:0px;
    margin-left:10px;
}

p {
    margin:0px;
    margin-left:30px;
    margin-right:30px;
}