@media only screen and (max-width: 600px){
    .lang-head-btn{
        font-size: .9rem;
    }
    .nav-tabs .nav-item.show .nav-link, .nav-tabs .nav-link.active{
        line-height: 1.2rem;
        font-size: 1rem;
    }
    .tab-sec-box .nav-link{
        font-size: 1rem;
    }
   .navbar-light .navbar-toggler{
    background-color: #9e9d9d!important;
    margin-left: 4%;
  }
  .tab-sec-box .nav-link{
    white-space: normal;
  }
  .navbar-nav .nav-link{
    text-align: center;
    margin: 10px 0px;
  }
  .active::after{
    width: 15%!important;
    bottom: -2px!important;
  }
    .nav-item.active::after,
    .nav-item:hover::after {
    width: 10%;
    bottom: -2px!important;
    }
    .nav-item::after{
        bottom: 20px;
    }
    .navbar-nav{
        padding-top: 30px;
    }
    .dos-title h2{
        font-size: 1.5rem;
    }
    .dos-title span{
        font-size: 0.8rem;
    }
    .supprt-tit{
        padding: 0px 10px;
    }
    .supprt-tit h3{
        font-size: 1.2rem;
        line-height: 1.9rem;
    }
    .support-logo-wr{
        width: 100%;
        flex-direction: column;
    }
    .suppor-img-bx{
        width: 45%;
        margin: 15px 0px;
    }
    .cust-container{
        padding: 0px 30px;
    }
    .m-b{
        margin-bottom: 20px;
    }
    .abt-blackbox{
        margin: 15px 0px;
    }
    .video-banner iframe{
        height: 400px;
    }
}

@media only screen and (min-width: 601px) and (max-width: 990px){
 
    .navbar-light .navbar-toggler{
        background-color: #9e9d9d!important;
        margin-left: 4%;
      }
}


@media only screen and (min-width: 991px) and (max-width: 1300px){
   
}
@media only screen and (min-width: 991px) and (max-width: 1230px){
  
}