#editor{
  width:50%;
  height:200px;
  border:1px solid #777;
}

#src{
  width:49%;
  float:right;
  height:400px;
  border:1px solid #f99;
  font-family: consolas, mono;
}

body {
font-family: Arial, Helvetica, sans-serif;
padding:  20px;
}

.article {
  padding: 200px 10% 0 10%;
}