.nav-link {
  color: gray;
} 

.nav-link:hover {
  color: #000;
} 

.nav-pills .nav-link.active, .nav-pills .show>.nav-link {
  background-color: gray;
}

/* .mainGrid {
  background-image: url(../img/00012-1829228597.png);
  background-repeat: no-repeat;
  background-size: contain;
  width: 100%;
  height: 100vh;
  color:#fff;
} */