Pure CSS nav bar — Bootstrap navbar snippet

1 
2    <nav>
3      <div class="navbar">
4        <div class="container nav-container">
5            <input class="checkbox" type="checkbox" name="" id="" />
6            <div class="hamburger-lines">
7              <span class="line line1"></span>
8              <span class="line line2"></span>
9              <span class="line line3"></span>
10            </div>  
11          <div class="logo">
12            <h1>Top Navbar</h1>
13          </div>
14          <div class="menu-items">
15            <li><a href="#">Home</a></li>
16            <li><a href="#">Physics</a></li>
17            <li><a href="#">Home Science</a></li>
18            <li><a href="#">Science</a></li>
19            <li><a href="#">Login/Register</a></li>
20          </div>
21        </div>
22      </div>
23    </nav>