Gebruiker:Msj/Zandbak/styles.css

.cf:before,
.cf:after {
  content: " ";
  display: table;
}
.cf:after {
  clear: both;
}
.hoofding,
.footer,
.one,
.two,
.three {
  width: 100%;
  padding: 80px 0;
  color: white;
  font-family: sans-serif;
  text-align: center;
}
.hoofding {
	background: magenta;
}
.hero {
	background: linear-gradient( rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5) ), url("https://upload.wikimedia.org/wikipedia/commons/9/97/Congo_painting_4.jpg"); 
	background-size: 100%;
	height:8em;
	padding:2em;
	font-size:1.5em;
	line-height:2em;
	text-shadow: .1em .1em #444444;
	color: white;
	font-family: sans-serif;
	text-align: left;
	overflow-y: hidden;
	padding-bottom:4em;
	}
.footer {
	background:grey;
	}
.one {
  background: red;
}
.two {
  background: blue;
}
.three {
  background: green;
}

@media (min-width: 768px) {
  .hero {
  	font-size:2em;
  }
  .one-two {
    float: left;
    width: 66.6666%;
  }
  .one,
  .two {
    float: right;
    width: 50%;
  }
  .three {
    float: left;
    width: 33.3333%;
  }
}