#loading-overlay {      display: none !important;  }  * {      margin: 0;      padding: 0;      box-sizing: border-box;  }    html {      scroll-behavior: smooth;  }  .zalo {    position: fixed;    width: auto;    z-index: 9999; right: 2%  ;  bottom: 23%;  }  main {      margin-top: 0px;  }    /* display none cai gi thi cho vao day */  .btn {      display: none !important;  }    /* navbar menu */  .navbar-nav {      display: flex;      justify-content: center;      width: 100%;  }  .navbar-expand-lg {      background: #000;    }  .dropdown-menu {      background: #000 !important;  }  .nav-item .nav-link {      text-transform: uppercase;      font-weight: 700;      font-size: 16px;  }  .nav-item .nav-link:hover {      color: #ff9743 !important;  }  a.dropdown-item:hover {      background: #ff9743 !important;      color: #000 !important;  }    /* muc tin tuc */  .top .tenp a {      opacity: 1 !important;      background: #000;      font-size: 23px;      text-transform: uppercase;  }    .container  .nhomtintuc .card:hover {      background: #ff9743;  }  .container  .nhomtintuc .card:hover .card-body header a {      color: #000;  }  .container .nhomtintuc .img img {      height: 250px;      object-fit: cover;  }  .container  .tomtat {      display: -webkit-box;      -webkit-box-orient: vertical;      overflow: hidden;      text-overflow: ellipsis;      -webkit-line-clamp: 5;  }  .container  .tomtat p {      font-size: 14px;  }  .container  .nhomtintuc .card .card-body header {      width: 100%;      text-align: center;  }  .container  .nhomtintuc .card .card-body header a {      color: #ff9743;  }  .cuoitrang {      display: flex;  }  /* footer */  .bd-footer {      background: #000;  }  .noidungchitiet img{      height: auto!important;  }    .navbar-expand-lg{background:gray!important}  .navbar-expand-lg .nav-link{margin:0 10px}  .tenp a{background:gray!important;color:#fff!important}  .container .nhomtintuc .card{min-height:320px;border:1px solid #000;transition:all .3s}  .card-text{display:none}