Glyphicons字体图标

Glyphicons字体图标-----好处可以减少请求，容易控制样式!

<p>
    <button type="button" class="btn btn-default">
        <span class="glyphicon glyphicon-sort-by-attributes"></span>
    </button>
    <button type="button" class="btn btn-default">
        <span class="glyphicon glyphicon-sort-by-attributes-alt"></span>
    </button>
    <button type="button" class="btn btn-default">
        <span class="glyphicon glyphicon-sort-by-order"></span>
    </button>
    <button type="button" class="btn btn-default">
        <span class="glyphicon glyphicon-sort-by-order-alt"></span>
    </button>
</p>
<button type="button" class="btn btn-default btn-lg">
    <span class="glyphicon glyphicon-user"></span>
    User
</button>
<button type="button" class="btn btn-default btn-sm">
    <span class="glyphicon glyphicon-user"></span>
    User
</button>
<button type="button" class="btn btn-default btn-xs">
    <span class="glyphicon glyphicon-user"></span>
    User
</button>

开发手册

_{http://www.runoob.com/bootstrap/bootstrap-glyphicons.html}