title: bootstrap Navbar V.S. HTML ul li
body: <p>I'm designing a online shopping website of my work,</p>
  <p>and I use <code>&lt;ul&gt;</code> <code>&lt;li&gt;</code> and <code>&lt;a&gt;</code> to acheive that.</p>
  <p>I just want to know how's different between the bootstrap Navbar and HTML ul li.</p>
  <p>And want to know which is the better choice</p>