@media (min-width: 992px) {
  /* move the logo to center (back to default left if squished)*/
  .navbar-brand.abs {
    position: absolute;
    width: auto;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
  }

}

.bg-lightgrey {
  background-color: lightgray !important;
}

a.bg-lightgrey:hover, a.bg-lightgrey:focus,
button.bg-lightgrey:hover,
button.bg-lightgrey:focus {
  background-color: lightgray !important;
}