導(dǎo)航欄內(nèi)設(shè)置字體與圖標(biāo)居中
<nav class="navbar navbar-inverse ?blue" ?role="navigation">
? ? ?<div class="container-fluid">
? ? ? <div class="navbar-header">
? ? ? ?<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
? ? ? ?</button>
? ? ? ?<span><a class="navbar-brand" href="#">
? ? ? ? <img alt="Brand" height="30px" src="images/bootstrap-logo.png">
? ? ? ?</a>
? ? ? ?Angulr</span>
? ? </div>
? </div>
</nav>
