HTML – Bootstrap Jumbotron背景图像不响应

2023年4月15日 247次阅读

我是相当新的引导程序,并且很难在不显示白色背景的情况下尝试使我的jumbotron背景图像正确缩放.我在页面顶部使用Bootstrap Fixed Nav,在中间使用Jumbotron(bg图像),使用Sticky Footer.当我在谷歌浏览器中测试以查看布局是否正确时,似乎图像不会向下延伸到页脚的顶部,这会显示白色背景.如何才能使背景图像适合所有设备？

HTML：
    

    <!-- Fixed navbar -->
    <nav class="navbar navbar-default navbar-fixed-top">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="index.html">Jason<span>Murray</span></a>
        </div>
        <div id="navbar" class="navbar-collapse collapse">
          <ul class="nav navbar-nav navbar-right">
            <li class="active"><a href="index.html">Home</a></li>
            <li><a href="#about">About</a></li>
            <li><a href="#contact">Portfolio</a></li>
            <li><a href="#contact">Contact</a></li>
          </ul>
        </div><!--/.nav-collapse -->
      </div>
    </nav>

    <div class="jumbotron">
      <div class="container">
        <h1 class="text-center">Front-End Web Developer</h1>
        <p class="text-center">I'm Jason Murray, Front-End Web Developer who loves to write clean codes and build simplistic web designs.</p>
        <p class="text-center"><a class="btn btn-primary btn-lg" href="#" role="button">Recent Work</a></p>
      </div>
    </div>

    <footer class="footer">
      <div class="container">
        <p class="text-center">Copyright &copy; 2016 <a href="index.html" target="_blank">Jason Murray Web Design</a>. All Rights Reserved</p>
      </div>
    </footer>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="js/bootstrap.min.js"></script>
  </body>
</html>

CSS:

.jumbotron {
  background: url("../img/lucho-49.jpg") no-repeat center center;
  -webkit-background-size: 100% 100%;
  -moz-background-size: 100% 100%;
  -o-background-size: 100% 100%;
  background-size: 100% 100%;
}

最佳答案 这个jumbotron类有一个保证金底部,所以删除保证金：

.jumbotron {
  margin-bottom: 0;
}

这是小提琴：fiddle link

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