@media (min-width:1200px){

}
@media (min-width:992px) and (max-width:1199px){

}

@media (min-width:768px) and (max-width:991px){
    .header_div{
        margin-bottom: 0px !important;
    }

}

@media (min-width:380px) and (max-width: 767px){
    .welcome_div{
        display: none;
    }
    .login_div{
        margin-left: 5px !important;
    }
    .header_div{
        margin-bottom: 0px !important;
    }
}
@media (min-width:321px) and  (max-width: 379px){
    .welcome_div{
        display: none;
    }
    .login_div{
        margin-left: 5px !important;
    }
    .header_div{
        margin-bottom: 0px !important;
    }
}
@media (max-width: 320px){
    .welcome_div{
        display: none;
    }
    .login_div{
        margin-left: 5px !important;
    }
    .header_div{
        margin-bottom: 0px !important;
    }
}