body {
  background-color: #1a2e1a;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.topbox {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 95%;
  height: 65%;
  border: 2px solid #2d5016;
}

.bottombox {
  position: fixed;
  bottom: 0;
  width: 95%;
  height: 34%;
  border: 2px solid #4a7c59;
}

.topcenterimg {
  position: fixed;
  top: 0;
  left: 50%;
}