html, body {
    height: 100%;
    margin: 0px;
  }
  #c {
    width: 100%;
    height: 100%;
    display: block;
  }
 
#blocker {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: rgba(57, 57, 96, 0.172);
}

#instructions {
  width: 100%;
  height: 100%;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: rgb(168, 238, 248);
  text-align: center;
  font-size: 14px;
  cursor: pointer;
}