<h3>Find Your Preferred Courses</h3>
    <form role="search" method="get" action="https://avishkarpucollege.com/beta/courses/">
                    <button type="button" data-toggle="dropdown" aria-expanded="false">
                        Categories
                        |
                    </button>
                        <ul>
                                                            <li><a href="#" data-cat="0">All</a></li>
                                                            <li><a href="#" data-cat="112">Kids</a></li>
                                                            <li><a href="#" data-cat="39">Programming</a></li>
                                                            <li><a href="#" data-cat="40">Technology</a></li>
                                                            <li><a href="#" data-cat="38">Web Development</a></li>
                                                    </ul>
                    <input type="hidden" name="refcat" value="">
                    <input type="hidden" name="ref" value="course">
                    <input type="text" placeholder="Enter Your Keyword ..." name="s">
                <button type="submit"></button>
    </form>