body {
  margin: 0;
  padding: 0;
}

.main-container {
  background-color: rgb(113, 128, 212);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

canvas {
  background-color: #fff;
}
header {
  position: inherit;
  margin-top: 0.1em;
  width: 100%;
  padding: 0 0.1em;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.5);
}

.menu {
  margin-top: 0;
  margin-bottom: 0;
  padding-left: 0;
  list-style: none;
  display: flex;
  gap: 2em;
}