@media only screen and (max-width:768px){
    
    .navbar-default .navbar-toggle{
        top: 50px;
        right: 20px;
    }
    .navbar-default .navbar-nav > li > a{
        border-radius: 0;
        margin-bottom: 1px;
        background-color: #fff;
    }
    .footer p{
        text-align: center;
        margin: 15px 0;
    }
    .course-title, .course-title.sub{
        height: auto;
        line-height: 30px;
    }
    .course-title.sub{
        margin-left: 0;
    }
}