为什么我没有实现图片的滚动，求大神指点？
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除非给body元素设置padding，默认高度是50px，比如设置body{padding-top:70px}。 navbar-inverse不加的情况下是白色条框，
加了他是黑色导航条-->
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<li data-target="#Carousel-example-generic" data-slide-to="3" ></li>
<li data-target="#Carousel-example-generic" data-slide-to="4"></li>
</ol><!--这一块是三个小小点点的图标-->
<div role="listbox">
<div class="item active ">
<img src="img/cc.jpg" alt="0 slide">
<div>
<h1>努力</h1>
<p>相信梦想是价值的源泉，相信眼光决定未来的一切，
相信成功的信念比成功本身更重要，相信人生有挫折没有失败，
相信生命的质量来自决不妥协的信念。</p>
<p><a class="btn btn-lg btn-prmiary" href="http://www.lz13.cn/jingdianyuduan/8087.html" target="_blank" role="button">点我下载</a></p>
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</div>
<img src="img/dd.jpg" alt="1 slide">
<div>
<h1>飞翔</h1>
<p>我走得很慢，但我从不后退！</p>
<p><a class="btn btn-lg btn-prmiary" href="http://www.lz13.cn/jingdianyuduan/8087.html" target="_blank" role="button">点我下载</a></p>
</div>
</div>
</div>
<img src="img/ee.jpg" alt="2 slide">
<div>
<h1>隐忍</h1>
<p>流过泪的眼睛更明亮，滴过血的心灵更坚强！</p>
<p><a class="btn btn-lg btn-prmiary" href="http://www.lz13.cn/jingdianyuduan/8087.html" target="_blank" role="button">点我下载</a></p>
</div>
</div><!--这部分是内容-->
</div>
<img src="img/ss.jpg" alt="3 slide">
<div>
<h1>隐忍</h1>
<p>流过泪的眼睛更明亮，滴过血的心灵更坚强！</p>
<p><a class="btn btn-lg btn-prmiary" href="http://www.lz13.cn/jingdianyuduan/8087.html" target="_blank" role="button">点我下载</a></p>
</div>
</div><!--这部分是内容-->
</div>
<img src="img/ggg.jpg" alt="4 slide">
<div>
<h1>成功</h1>
<p>失败是什么？没有什么，只是更走近成功一步；成功是什么？就是走过了所有通向失败的路，
只剩下一条路，那就是成功的路。</p>
<p><a class="btn btn-lg btn-prmiary" href="http://www.lz13.cn/jingdianyuduan/8087.html" target="_blank" role="button">点我下载</a></p>
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