Css media query tidak bekerja

css media query nya gak bekerja udah baca baca digoogle ama forum ini gak work, udah clear cache juga sama aja pindah browser sama aja, diganti max atau min sama aja, tpi yang header work

@media(max-width: 911px)
{
    header{
        padding: 0 20px;
    }
    .menu-toggle{
        display: block;
    }
    header nav{
        position: absolute;
        width: 100%;
        height: calc(100vh - 50px);
        background: linear-gradient(45deg,#2DD6D4,rgb(98, 100, 187));
        top: 90%;
        left: -100%;
        transition: ease-in-out all 0.5s;
    }
    header nav.active{
        left: 0;
    }
    header nav ul{
        display: block;
        text-align: center;
    }
    header nav ul li a{
        border-bottom: 1px solid rgba(0,0,0, .2);
    }
    .box-login{
    background-color: rgba(255, 255, 255, .7);
    width: 80%;
    height: auto;
    margin-left: 0%;
    margin-top: 20vh;
    padding: 20px;
    position: absolute;
    z-index: 2;
    box-sizing: border-box;
  }

  .profil{
  width: 100%;
  background-color: white;
  border-radius: 5px;
  margin-bottom: 10px;
  }

  .profil img{
    width: 150px;
    height: 150px;
    margin-top: 25px;
  }
  .menu{
    width: 90%;
  }
  .menu-2{
    width: 90%;
  }
}

@media (max-width: 768px) {
  .menu{
    width: 100%;
  }
  .menu-2{
    width: 100%;
  }
}

<div class="menu-2">
        <details>
              <summary>
                <b>Ceritamu</b><br><sup>menampilkan semua cerita yang pernah kamu buat</sup>
              </summary>
              <?php
                $lib = new Library();
                $show = $lib->menampilkancerita();
                while ($data = $show->fetch(PDO::FETCH_OBJ)){
              ?>
              <?php
                $user = $_SESSION['user']['name'];
                $dataPenulis = $data->penulis;

                if ($user == $dataPenulis){
                  echo "
                      <div class='container'>
                        <h3 class='judul-cerita'>".$data->judul_cerita."</h3>'
                        <br>

                        <details>
                          <p class='deskripsi-cerita mb-5 text-justify'>".$data->deskripsi."</p>
                        </details>

                        <hr><br>
                      </div>
                  ";
                }else{
                  echo "";
                }

              ?>
              <?php } ?>
            </details>
      </div>