.modal
{
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 9999; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}
.modal-content
{
    background-color: #fefefe;
    margin: 2% auto; /* 15% from the top and centered */
    padding: 20px;
    border: 1px solid #888;
    width: 20%; /* Could be more or less, depending on screen size */
}
.closeBtn
{
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}
.closeBtn:hover,
.closeBtn:focus
{
    color: black;
    text-decoration: none;
    cursor: pointer;
}
.tab-content .tab-pane[data-pane="course-details"] table{
    margin-top:16px;
}
@media screen and (max-width: 768px) {
.modal-content
{
    width: 86%; /* Could be more or less, depending on screen size */
}
}