As a beginner in the world of HTML5 and Twitter Bootstrap, I have been exploring some pre-built examples and now have a few questions...
Consider this code snippet from the Fluid Layout Example:
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container-fluid">
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="#">Project name</a>
<div class="btn-group pull-right">
<a class="btn dropdown-toggle" data-toggle="dropdown" href="#">
<i class="icon-user"></i> Username
<span class="caret"></span>
</a>
<ul class="dropdown-menu">
<li><a href="#">Profile</a></li>
<li class="divider"></li>
<li><a href="#">Sign Out</a></li>
</ul>
</div>
<div class="nav-collapse">
<ul class="nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
</div>
I am curious about:
- What role do the
data-toggleanddata-targetattributes play? - Why are there three empty
icon-barspans (or even an emptycaretspan)?