.hidden{
    /* Hide the text. */
    text-indent: 100%;
    white-space: nowrap;
    overflow: hidden;
}

.konten {
  margin-top: 80px;
}

.jumbotron {
  height: 350px;
  color: white;
  background-color: #68a1fc;
}

.gbr {
  width: 40%;
  height: 160px;
  margin: auto;
  display: block;
}

.gbr-buku {
  width: 100%;
  height: 150px;
}

.gbr-buku-admin {
  width: 150px;
  height: 150px;
}

.gbr-profile {
  width: 200px;
  height: 200px;
}

.card-title p {
  line-height: 10px;
}

.user {
  overflow: hidden;
  height: 350px;
}

.data-buku-peminjaman,
.data-search-user {
  position: absolute;
  background-color: white;
  border: 1px solid rgba(0, 0, 0, .2);
  width: 94%;
  padding: 0;
}

.data-buku-peminjaman  p,
.data-search-user p {
  padding: 10px;
  margin: 0;
  cursor: pointer;
}

.data-buku-peminjaman  p:hover,
.data-search-user p:hover {
  color: white;
  background-color: #68a1fc;
}

@media (max-width: 768px) {
  .jumbotron {
    height: 250px;
  }

  .jumbotron h3 {
    font-size: 20px;
  }

  .jumbotron p {
    font-size: 15px;
  }

  .gbr {
    width: 50%;
    margin: -50px auto 0 auto;
    display: block;
  }
}