canvas {
  position: absolute;

  top: 0;
  left: 0;

  z-index: -1; 
}
.header{
  position: absolute;    
  margin: 0;
  padding: 10px;
  text-align: center;

  top: 5%;
  left: 15%;

  width: 69%;
  height: 12%;

  background:#506C64;

  z-index: 10;
}
#backButton{
  position: absolute;    
  margin: 0;
  padding: 10px;
  text-align: center;

  width: 8%;
  height: 8%;

  left: 3%;
  top: 3%;

  background:#506C64;
  visibility: visible;

  z-index: 10;
}
#boxCode{
  position: absolute;    
  margin: 0;
  padding: 10px;
  text-align: left;

  overflow-y: scroll;
  overflow-x: hidden;
  word-wrap: break-word;

  width: 82%;
  height: 245px;

  left: 8%;
  top: 31%;

  background:#506C64;

  z-index: 10;
}
#description{
  position: absolute;    
  margin: 0;
  padding: 10px;
  text-align: center;

  overflow-y: hidden;
  overflow-x: hidden;
  word-wrap: break-word;

  width: 82%;
  height: 11%;

  left: 8%;
  top: 80%;

  background:#506C64;

  z-index: 10;
}.whiteWordsHeader{
  position: relative;
  color:aliceblue;
  font-size: 50px;
  top: -20px;
}
.whiteWords{
  position: relative;
  color:aliceblue;
  font-size: 50px;
  top: -30px;
}
.whiteWordsSmall{
  position: relative;
  color:aliceblue;
  font-size: 25px;
  top: -20px;
}