@media only screen and (max-width:600px){
    .login-info{
        display: none;
    }
}
@media only screen and (max-width:1100px){
    .menu{
        display: none;
    }
    .sidebar{
        left: -350px;
    }
    .activesidebar {
        left: 0px;
    }
    .content{
        margin-left: 0px;
    }
}