<aside>
    <div id="sidebar" class="nav-collapse ">
        <ul class="sidebar-menu">
            <li class="active">
                <a class="" href="dashboard.php">
                    <i class="icon_house_alt"></i>
                    <span>Dashboard</span>
                </a>
            </li>
            <li class="sub-menu">
                <a href="javascript:;" class="">
                    <i class="icon_document_alt"></i>
                    <span>Distribution</span>
                    <span class="menu-arrow arrow_carrot-right"></span>
                </a>
                <ul class="sub">
                    <li><a class="" href="marks_distribution.php">Marks Distribution</a></li>
                    <li><a class="" href="show_distribution.php">Show Distribution</a></li>
                </ul>
            </li>
            <li class="active">
                <a class="" href="running_course.php">
                    <i class="icon_genius"></i>
                    <span>Running Course</span>
                </a>
            </li>
            <li class="active">
                <a class="" href="assign_marks.php">
                    <i class="icon_desktop"></i>
                    <span>Assign Marks</span>
                </a>
            </li>
            <li class="active">
                <a class="" href="change-password.php">
                    <i class="icon_document_alt"></i>
                    <span>Change Password</span>
                </a>
            </li>
        </ul>
    </div>
</aside>