导航栏以覆盖背景颜色和图像-Java 学习之路

Question 1: 我想让我的导航栏粘贴覆盖在div（ top-banner ）的背景颜色和背景图像之上，现在当我向下滚动时 . 背景颜色将覆盖我的导航栏词缀 .

我如何实现这样我的导航栏将在div类顶部 Banner 的背景颜色之上 .

还有一个问题是我的导航栏本身就有剩余边距，当我添加数据 Spy 附加功能时，导航栏稍微向右移动，导致左边的空白区域，当我将屏幕重新缩放到更小的设备尺寸时，导航栏折叠菜单是不可点击的，除非我略微点击到最右边，然后切换菜单 . 我不确定为什么词缀会有这样的问题 . 我如何解决它 .

THANKS FOR HELPING to resolve this issues!!

Below is my code

<html>
    <head>
    <title>Demo</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <style type="text/css">
    .navbar-header,
    .navbar-brand {
        line-height: 100px;
        height: 100px;
        padding-top: 0;
    }
    .affix .navbar-default {
        position: fixed !important;
        top: 0 !important;
        width: 100% !important;
        background-color: #957595 !important;
    }
    .affix {
        width: 100% !important;
    }
    @media screen and (min-width: 768px) {
    .navbar-header {
        padding-left: 200px;
        text-align: center;
    }
    }
.top-banner{
    background-color: #b0c4de;
    background-image: url("bi-uk-office7-2.jpg");
    background-repeat: no-repeat;
    background-position: right top;
}
    </style>
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
    </head>
    <body>
    <div class="container-fluid">
            <!-- Static navbar -->
         <div id="nav" data-spy="affix">
          <nav class="navbar navbar-default" style="background-color:black;background: rgba(0,0,0,0.9);">
            <div class="container-fluid">
              <div class="navbar-header 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="#">Logo</a>
              </div>
              <div id="navbar" class="navbar-collapse collapse">
                <ul class="nav navbar-nav">
                  <li><a href="#"><font color="white">Link 1</font></a></li>
                  <li><a href="/list"><font color="white">Link 2</font></a></li>
                  <li><a href="/list"><font color="white">Link 3</font></a></li>
              </div><!--/.nav-collapse -->

   </div>
      </nav>
</div>

<section>
<div class="col-xs-12">

<div class="top-banner">
Hello world

Hello world

Hello world

Hello world

Hello world

Hello world

Hello world

Hello world

Hello world

Hello world

Hello world

Hello world

<hr>
</div>

</div>
</section>



</div>
</body>
</html>

1 回答

3
将 z-index 添加到 #nav ，如下所示，并将 margin-left 属性添加到相同位置，以保持极左，因为它从其父级填充 container-fluid
```
#nav
{
     z-index:1000;
     margin-left: -15px;
}
```
回复于 2024-05-08T00:09:58+08:00

导航栏以覆盖背景颜色和图像

1 回答

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