因此,我正在尝试使用Bootstrap使我的网站具有响应能力,并且我已经对其进行了测试,以查看JavaScript是否全部正常运行。但是,在设置列网格后,内容不断消失。请注意,我的网站布局具有左侧和右侧,这与我的样式有所不同。我更改了Z-index来查看信息是否被隐藏在后面,但是仍然没有任何变化。当屏幕变小时,我希望左侧位于顶部上方,右侧位于其下方。 为什么我的内容消失了?
<!-- BODY -->
<div class="split left col-sm-6">
<div class="centered">
<img src="file:///Users/Kavinda/Documents/Whammy/Web%20Development/Cover.png" class="cover">
</img>
</div>
<header>
<nav>
<ul>
<li><a href="#" class="menu">Menu</a>
<div class="arrowup">
<ul>
<li><a href="#aboutus">About Us</a></li>
<li><a href="#newsletter">Newsletter</a></li>
<li><a href="#">Press Kit</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div>
</li>
</ul>
<!-- Social Media Links -->
<div id="socialmedia">
<a href="https://www.facebook.com/whammychat/?ref=bookmarks" target="_blank"> <img src="file:///Users/Kavinda/Documents/Whammy/Web%20Development/Social%20Media%20Icons/FB.png" alt="Facebook"></a>
<a href="https://twitter.com/whammychat" target="_blank"> <img src="file:///Users/Kavinda/Documents/Whammy/Web%20Development/Social%20Media%20Icons/Twitter.png" alt="Twitter"></a>
<a href="https://www.instagram.com/whammychat/" target="_blank"> <img src="file:///Users/Kavinda/Documents/Whammy/Web%20Development/Social%20Media%20Icons/Instagram.png" alt="Instagram"></a>
</div>
</nav>
</header>
</div>
<!-- RIGHT -->
<div class="split right col-sm-6">
<div class="centered">
<img src="file:///Users/Kavinda/Documents/Whammy/Web%20Development/New%20Logo%20-%20Social%20Media.png" class="logo"></img>
<div class=catchphrase>
<h1>
<span class="messenger"> Messenger </span>
<span class="x"> x </span>
<span class="gaming"> Gaming </span>
</h1>
</div>
<p class="soon"> Coming Soon <p>
<img class="gif" src="https://whammychat.files.wordpress.com/2018/01/gif-6-website.gif" alt="Intro GIF
"/>
输入列属性后,它变成这样的空白页: enter image description here