body {
  font-family: "Open Sans", sans-serif;
}

#container{
  width: 800px;
  margin: 0 auto;
}

.header{
  background-color: #33A1FD;
  height: 200px;
}

.sidebar{
  background-color: #F55536;
  float: left;
  width: 40%;
  height: 500px;
}

.main{
  background-color: #F79824;
  float: right;
  width: 60%;
  height: 500px;
}

.footer{
  background-color: blue;
  clear: both;
}

img {
  display: inline-block;