how to use section tag in bootstrap
<section id="header"> Name of section
<div class="container">
<div class="row">
<div class="col-xs-12"></div>
</div>
</div>
</section>
<section id="main-content"> Name of section
<div class="container">
<div class="row">
<div class="col-xs-6"></div>
<div class="col-xs-6"></div>
</div>
</div>
</section>
<section id="footer"> Name of section
<div class="container-fluid">
<div class="row">
<div class="col-xs-4"></div>
<div class="col-xs-4"></div>
<div class="col-xs-4"></div>
</div>
</div>
</section>