<div class="nav2a">
<div class="Logo">Devs Web</div>
<div class="dropdown">
    <ul class="dropdown-content">
        <li><a href="../index.html">Home</a></li>
        <li><a href="#">Front-End <i class="fa fas fa-angle-down"></i></a>
            <ul class="sub-menus animated flipInX">
                <li><a href="./HTML.html">HTML5</a></li>
                <li><a href="./CSS3.html">CSS3</a></li>
                <li><a href="#">JAVASCRIPT</a></li>
            </ul>
        </li>
        <li><a href="#">Back-End <i class="fa fas fa-angle-down"></i></a>
            <ul class="sub-menus animated flipInX">
                <li><a href="#PHP">PHP</a></li>
            </ul>
        </li>
        <li><a href="#Library" class="nav-link">Library</a></li>
        <li><a href="#Activites" class="nav-link">Live video</a></li>
        <li><a href="#contact" class="nav-link">Contact</a></li>
        <li><a href="#About" class="nav-link">About us</a></li>
</ul>
</div>
</div>
<ul class="icon_mobile" id="menu_mobile">
    <li><a href="../index.html"><span>Home</span><span><i class="fa fa-2x fas fa-home"></i></span></a></li>
    <li><a href="./HTML.html"><span>HTML5</span><span><i class="fa fa-2x fa fab fa-html5"></i></span></a></li>
    <li><a href="./CSS3.html"><span>CSS3</span><span><i class="fa fa-2x fab fa-css3"></i></span></a> </li>
    <li><a href="#javascrpit"><span>JAVASCRIPT</span><span><i class="fa fa-2x fab fa-js"></i></span></a></li>
    <li><a href="#bootstrap"><span>bootstrap</span><span><i class="fa fa-2x fab fa-bootstrap"></i></span></a></li>
</ul>
                        
                    
                                            
    /* start nav bar */
    .nav2a{
        height: 40px;
        background-color: #1a1a4e21;
        position: sticky;
        top: 15px;
        z-index: 2;
        margin-top: 0px;
        backdrop-filter: blur(10px);
        }
        .Logo{
        display: inline;
        color: #F2F2F2;
        margin-left:70px ;
        position: absolute;
        top:50%;
        transform: translate(-50%,-50%);
        }
        .dropdown{
        top: 0px;
        position: fixed;
        list-style-type: none;
        width: 90%;
        left: 10%;
        border-radius: 15px 0px 0px 15px;
        box-shadow: inset 0px 0px 0px black, 1px 1px 6px black;
        }
        .dropdown-content {
        position: relative;
        margin: 1px;
        display: flex;
        text-align: center;
        padding-inline-start: 0px;
        }
        .dropdown li{
        display: inline;
        list-style: none;
        float: right;
        font-weight: bold;
        padding: 10px; 
        border-radius: 5px;
        }
        .dropdown li a{
        text-decoration: none; 
        font-size: 16px;
        font-weight: 600;
        color: #1e87f0;
        margin-top: 5px;
        margin-left: 15px;
        padding:5px;
        }
        .dropdown li a:hover{
        border-bottom-color: #1e33f0 ;
        border-bottom-style:solid;
        z-index: 999; 
        }
        .icon_mobile{
        display: none;
        }
        .sub-menus{
        height: auto;
        overflow: hidden;
        position: absolute;
        z-index: 999;
        border-radius: 5px;
        box-shadow: -4px -4px 10px #00000018;
        backdrop-filter: blur(10px);
        -webkit-border-radius: 5px;
        -moz-border-radius: 5px;
        -ms-border-radius: 5px;
        -o-border-radius: 5px;
        background-color: rgba(3, 1, 12, 0.877);
        display: none;
        width: 160px;
        padding-left: 0px;
        margin: 0px 10px 10px -30px;
        }
        .sub-menus li {
        display: block;
        width: 100%;
        padding-bottom: 0px;
        }
        .sub-menus a {
        color: #FFFFFF;
        font-size: 16px;
        padding: 0.5rem 1rem;
        }
        li:hover .sub-menus {
        display: block;
        }
        .sub-menus a:hover{
        background: #F2F2F2;
        color: #444444;
        }
        @media only screen and (max-width: 1200px){
        
        }
        @media only screen and (max-width: 991px){
          .nav2a {
            display: none;
            }
          ul.icon_mobile{
          letter-spacing: 0px;
          top: 150px;
          height: 335px;
          position: fixed;
          right: 0px;
          display: inline-block;
          z-index: 999;
          margin-top: 44px;
          list-style: none;
          padding: 5px;
          }
          ul li{
          margin: 0px 0px;
          }
          ul li a{
          text-decoration: none;
          color: #b810c7 ;
          height: 55px;
          font-weight: 600;
          line-height: 50px;
          display: flex;
          flex-direction: row-reverse;
          }
          ul li a i{
          color: #b810c7 ;
          
          }
          ul li  a span i{
          padding-left: 0px;
          width: 40px;
          }
          ul li a span:nth-child(2){
          margin: 0px;
          display: grid;
          place-items: center;
          border-style: outset;
          text-align: center;
          border-width: 4px;
          border-color: #160d1473;
          box-shadow: -4px -1px 0px 0px #000000, 0px 0px 0px;
          width: 40px;
          height:75%;
          border-radius: 50%;
          }
          ul li a span:nth-child(1){
          width: 0px;
          height: 80%;
          font-size: 17px;
          background: #160d1473;
          text-transform: uppercase;
          letter-spacing: 2px;
          overflow: hidden;
          margin-right: 5px;
          border-radius: 50px 0px 0px 50px;
          transition: 0.3s ease;
          backdrop-filter: blur(5px);
          box-shadow: 6px 6px 0px 0px #000000, 0px 0px 0px;
          text-align: center;
          }
          ul li a:hover span:nth-child(1){
          width: 120px;
          padding-left: 20px;
          }
        li:nth-child(1) a i{
            color: #1e87f0;
        }
        li:nth-child(2) a i{
            color: #df3c0b;
        }
         li:nth-child(3) a i{
            color: #0d31d1;
        }
         li:nth-child(4) a i{
            color: #dfd110;
        }
         li:nth-child(5) a i{
            color: #be0fe0;
        }
          }
        /* end nav bar mobile */