body {
  background: url("../../assets/img/bgtrongdong.png") top center no-repeat;
  background-size: cover;
  background-attachment: fixed;
}

a {
  text-decoration: none;
}

header {
  box-shadow: 0px 0px 15px var(--bs-secondary);
}

.hidden {
  display: none;
}

.topbar {
  text-align: right;
  padding-right: 7px;
  padding-left: 7px;
}

.left-header {
  padding-top: 7px;
  padding-bottom: 7px;
}

.logo {
  margin: 0px;
  max-height: 120px;
  max-width: 100%;
}

.site-title {
  display: block;
  --bs-body-font-weight: bold;
  --bs-body-color: var(--bs-primary);
  color: var(--bs-primary);
  font-weight: bold;
}

.site-description {
  display: block;
  color: var(--bs-primary);
  margin: 0px;
  font-weight: bold;
}

.d-print-inline-block.right-header {
  padding-top: 7px;
  padding-bottom: 7px;
  text-align: right;
}

.banner {
  margin: 0px;
  background: url("../../assets/img/banner-bg.png") center / cover no-repeat, #ffffff;
}

.navbar {
  display: grid;
  padding-top: 0px;
  padding-bottom: 0px;
  grid-template: 1fr / 1fr;
  border: solid var(--bs-warning);
  border-width: 0px;
  border-top-width: 1px;
  border-bottom-width: 1px;
}

.nav-item {
  padding-right: 5px;
}

.navbar-nav .nav-item .nav-link {
  text-transform: uppercase;
  color: var(--bs-light);
  font-weight: bold;
  font-size: small;
  padding-top: 10px;
  padding-bottom: 10px;
}

.navbar-nav .nav-item a:hover {
  background-color: rgba(0, 0, 0, 0.3);
}

.navbar-nav .nav-item .active {
  color: var(--bs-light);
  background-color: rgba(0, 0, 0, 0.3);
}

main {
  background: var(--bs-light);
  box-shadow: 0px 0px 15px var(--bs-secondary);
}

.main {
  padding: 0px;
}

.play-button {
  width: 100%;
  height: 100%;
}

.play-button img {
  opacity: 0.7;
  max-width: 50%;
  max-height: 50%;
}

.play-button img:hover {
  opacity: 1;
}

#play-media {
  padding: 0px;
  background: url("../../assets/img/cotoquoc.jpg") center / cover no-repeat;
  min-height: 100%;
}

footer {
  background: #ffffff;
  padding-top: 5px;
  padding-bottom: 5px;
  margin: 10px 0px 15px;
  box-shadow: 0px 0px 15px var(--bs-secondary);
}

/* Tables - No More Tables technique (991px is the bootstrap SM max-width) */
@media only screen and (max-width: 991px) {

  .table.table-no-more,
  .table.table-no-more thead,
  .table.table-no-more tbody,
  .table.table-no-more tr,
  .table.table-no-more th,
  .table.table-no-more td {
    display: block;
  }

  .table.table-no-more thead tr {
    left: -9999px;
    position: absolute;
    top: -9999px;
  }

  .table.table-no-more tr {
    border-bottom: 1px solid #DDD;
  }

  .table.table-no-more td {
    border: none;
    position: relative;
    padding-left: 50%;
    text-align: left;
    white-space: normal;
  }

  .table.table-no-more td:before {
    content: attr(data-title);
    font-weight: bold;
    left: 6px;
    padding-right: 10px;
    position: absolute;
    text-align: left;
    top: 8px;
    white-space: nowrap;
    width: 45%;
  }

  .table.table-no-more.table-bordered td {
    border-bottom: 1px solid #dedede;
  }

  .table.table-no-more.table-sm td:before {
    top: 5px;
  }
}