body {
  background-color: #ffffff;
  opacity: 1;
  background-image: linear-gradient(30deg, #034383 12%, transparent 12.5%, transparent 87%, #034383 87.5%, #034383), linear-gradient(150deg, #034383 12%, transparent 12.5%, transparent 87%, #034383 87.5%, #034383), linear-gradient(30deg, #034383 12%, transparent 12.5%, transparent 87%, #034383 87.5%, #034383), linear-gradient(150deg, #034383 12%, transparent 12.5%, transparent 87%, #034383 87.5%, #034383), linear-gradient(60deg, #03438377 25%, transparent 25.5%, transparent 75%, #03438377 75%, #03438377), linear-gradient(60deg, #03438377 25%, transparent 25.5%, transparent 75%, #03438377 75%, #03438377);
  background-size: 44px 77px;
  background-position: 0 0, 0 0, 22px 39px, 22px 39px, 0 0, 22px 39px;
}

.sidebar {
  position: fixed;
  left: 20px;
  top: 25%;
  width: 180px;
  background-color: #003366;
  border: 2px solid white;
  padding: 10px;
  color: white;
  font-family: monospace;
  font-size: 12px;
  z-index: 999;
}

.rightbar {
  position: fixed;
  right: 20px;
  top: 25%;
  width: 180px;
  background-color: #003366;
  border: 2px solid white;
  padding: 10px;
  color: white;
  font-family: monospace;
  font-size: 12px;
  z-index: 999;
}

.center {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 60%;
  margin: 0 auto;
  background-color: #003366;
  padding: 0;
  border: 2px solid white
}

pre {
  font-size: 14px;
  color: white;
  font-family: monospace;
  font-weight: bold;
  padding: 10px;
  width: 100%;
  box-sizing: border-box;
  overflow-x: auto;
  margin: 0;
}

.box {
  display: block;
  width: 60%;
  min-height: 400px;
  background-color: #003366;
  margin: 50px auto;
  padding: 20px;
  color: white;
  box-sizing: border-box;
  border: 2px solid white
}

.box p {
  line-height: 1.6;
  margin-bottom: 16px;
}
.main {
  margin: 0 auto;
}

h3 {
  margin: 0 0 8px 0;
  font-size: 13px;
  border-bottom: 1px solid white;
  padding-bottom: 4px;
}