* {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #889bbb;
}
body {
  padding: 20px 35px;
}
h1 {
  font-size: 80px;
  color: #90df90;
  text-transform: uppercase;
  text-shadow: 1px 2px 0 #000;
}
.cell {
  width: 32px;
  aspect-ratio: 1 / 1;
  background-color: #777;
  border-right: 1px dashed darkgray;
  border-bottom: 1px dashed darkgray;
}
#boardContainer {
  display: grid;
  grid-template-columns: repeat(var(--boardWidth), max-content);
  border-left: 1px dashed darkgray;
  border-top: 1px dashed darkgray;
  width: fit-content;
  box-shadow: 10px 10px 15px rgba(0, 0, 0, 0.7);
}