main.css

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
    text-transform: capitalize;
    text-decoration: none;
  }
  body{
    min-height: 100vh;
  }
  .navbar{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    position: fixed;
    background-color: #2A7593;
    opacity: 1;
    padding: 10px 20px 10px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    transition: top 0.3s ease-in-out, opacity 0.3s ease-in-out;
    opacity: 1;
    /* height: 80px; */
  }
  .navbar.hide {
    top: -100px;
    opacity: 0;
  }
  
  .navbar.top {
    background: rgb(202, 225, 224);
    background: linear-gradient(94deg, rgba(202, 225, 224, 1) 0%, rgba(5, 58, 117, 1) 34%);
    color: black;
  }
  .navbar nav ul{
    list-style-type: none;
  }
  .navbar nav ul li{
    position: relative;
    float: left;
    padding: 15px;
  }
  .navbar nav ul li a{
    padding: 5px;
    display: block;
    color: white;
  }
  .navbar nav ul li a:hover{
    border-bottom: 1px solid black;
    
  }
  .navbar nav ul li ul{
    position: absolute;
    left: 0;
    width: 200px;
    background: #fff;
    display: none;
  }
  .navbar nav ul li .others{
    position: absolute;
    left: -100px;
    width: 200px;
    background: #fff;
    display: none;
  }
  .navbar nav ul li ul li{
   width: 100%;
   border-top:1px solid rgba(0, 0, 0, 0.1) ;
  }
  .navbar nav ul li ul li a:hover{
  border-bottom: none;
  }
  .navbar nav ul li ul li a{
    color: #333;
  }
  .navbar nav ul li ul li ul{
   left:200px ;
   top: 0;
  }
  .navbar nav ul li ul li .Comitee{
   left:200px ;
   top: 0;
   width: 250px;
  }
  .navbar nav ul li ul li .departement{
   left:-400px ;
   top: 0;
   width: 400px;
  }
  .navbar nav ul li:focus-within >ul,
  .navbar nav ul li:hover >ul{
    display: initial;
  }
  #menu-bar{
  display: none;
  }
  .navbar label {
  font-size: 30px;
  cursor: pointer;
  color: #333;
  display: none;
  }
  @media (max-width: 1100px){
    .navbar{
      padding: 20px;
    }
    .navbar label  {
      display: initial;
    }
    .navbar nav {
      position: fixed;
      width: 100%;
      height: 100vh;
      background: #fff;
      top: 80px;
      left: -100%;
      text-align: center;
      transition: all 0.5s;
    }
    .navbar nav ul li{
      width: 100%;
      
    }
    .navbar nav ul li ul{
      position: relative;
      width: 100%;
    }
    .navbar nav ul li ul li{
      background: #eee;
    }
    .navbar nav ul li ul li ul{
      left: 0;
      width: 100%;
    }
    #menu-bar:checked ~ nav{
      display: initial;
      left: 0;
    }
   
  }