html, body {
  margin:0;
  padding:0;
  border:none;
}
#container {
  width: 80%;
  max-width: 1000px;
  min-width: 300px;
  margin: 0 auto;
  padding: 0;
}
#container h1 {
  border: thin solid green; /* remove this line to remove the border */
}
#container h2 {
  clear: both;
  border: thin solid blue; /* remove this line to remove the border */
}
#thick-col {
  width: 78%;
  float: right; /* switch this to left and below to right to change the column locations */
  border: thin solid black; /* remove this line to remove the border */
}
#thin-col {
  width: 20%;
  float: left; /* switch this to right and above to left to change the column locations */
  border: thin solid red; /* remove this line to remove the border */
}