.board {
  padding: 40px;
  text-align: center;
  height: 70vh;
  width: 100%; }

.global {
  margin: 0 auto;
  max-width: 550px; }

.players {
  height: 30vh; }

.empty-cell {
  background-color: white; }

.opponent-x-cell {
  background: url("../../img/opponent-x-cell.png") no-repeat center center; }

.opponent-o-cell {
  background: url("../../img/opponent-o-cell.png") no-repeat center center; }

.user-x-cell {
  background: url("../../img/user-x-cell.png") no-repeat center center; }

.user-o-cell {
  background: url("../../img/user-o-cell.png") no-repeat center center; }

.cell {
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover; }

div.col-4 {
  padding: 20px; }

div.col-4:nth-child(4),
div.col-4:nth-child(5),
div.col-4:nth-child(6) {
  border-bottom: black solid 2px;
  border-top: black solid 2px; }

div.col-4:nth-child(2),
div.col-4:nth-child(5),
div.col-4:nth-child(8) {
  border-left: black solid 2px;
  border-right: black solid 2px; }

img {
  height: 100%;
  width: 100%; }

.popover {
  left: 110px !important;
  top: -30px !important; }