I am facing a problem because i don't study more about design part
I am using a Template from w3layouts.com under Education section using Tutoring Template. It is bootstrap based template.
Demo Page Edited by me is here Demo Page
I am using dropdown button facility of bootstrap.
When I open check dropdown button Downloads in my laptop it looks like this

When I am opening this same page on my mobile(actually I reduced web browser size) it looks like this

As you can see in above image with Desktop View it looks messy...
What should I do now code is given below.
<div class="header" id="home">
    <nav class="navbar navbar-default">
        <div class="container-fluid">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="index.html"><img src="images/logo.png" alt="" /></a>
        </div>
        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li class="active"><a href="index.html" class="hvr-bounce-to-top">Home <span class="sr-only">(current)</span></a></li>
                  <!-- Problem Start From Here -->
                  <!-- Problem Start From Here -->
                  <!-- Problem Start From Here -->
                <li class="dropdown">
                  <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Downloads <span class="caret"></span></a>
                  <ul class="dropdown-menu">                      
                    <li class="dropdown-header">Practical Files</li>
                    <li><a href="#">Selected Download</a></li>
                    <li><a href="#">List View Mode</a></li>
                    <li role="separator" class="divider"></li>
                    <li class="dropdown-header">Cover/Index Pages</li>
                    <li><a href="#">Front/Cover Pages</a></li>
                    <li><a href="#">Index Pages</a></li>
                    <li role="separator" class="divider"></li>
                    <li class="dropdown-header">Reports Format</li>
                    <li><a href="#">Major/Minor Format</a></li>
                    <li><a href="#">Industrial File Format</a></li>
                    <li class="dropdown-header">Reports Files</li>
                    <li><a href="#">Major/Minor Projects</a></li>
                    <li><a href="#">Industrial Training</a></li>
                  </ul>
                </li>
                <!-- Till Here -->
                <!-- Till Here -->
                <!-- Till Here Maybe -->
                <li><a href="about.html" class="hvr-bounce-to-top">About</a></li>
                <li><a href="services.html" class="hvr-bounce-to-top">Services</a></li>
                <li><a href="contact.html" class="hvr-bounce-to-top">Contact</a></li>
            </ul>
            <div class="clearfix"></div>
        </div><!-- /.navbar-collapse -->
        </div><!-- /.container-fluid -->
    </nav>
</div>
If there is any requirement for any other codes or full code please let me know. I tried to add and remove codes in html but always makes it more messy...