html, body {
  margin: 0;
  padding: 0;
}
canvas {
  display: block;
}

#container1{
  margin:auto;
  width:1000px;
  height:1700px;
  background-color:#c8c8c8;
}

#bh1 {
  margin:auto;
  float:left;
  margin:50px;
}

#bh2{
  margin:auto;
  float:right;
    margin:50px;
}

#bh3{
  margin:auto;
  float:left;
    margin:50px;
}

#bh4{
  margin:auto;
  float:right;
    margin:50px;
}

#bh5{
  margin:auto;
  float:left;
    margin:50px;
}

#bh6{
  margin:auto;
  float:right;
    margin:50px;
}

#bh7{
  margin:auto;
  float:left;
    margin:50px;
}

#bh8{
  margin:auto;
  float:right;
    margin:50px;
}