#title-west {display: none;}
#title-north {}
#board-area {}
#info-south {}
#info-east {display:none;}

#title-west {
  background-color: cyan;
  display: none;
}
#title-north {
  background-color: blue;
}
#board-area {
  background-color: grey;
}
#info-south {
  background-color: red;
}
#info-east {
  background-color: pink;
  display:none;
}

Add distinct background colours for debugging
Add distinct background colours for debugging