如何只显示菜单的汉堡图标而不是背景栏，并在中间上方显示菜单选项

我有一个如下菜单，但我有一些问题。例如，在全尺寸屏幕中，菜单选项不在它所在部分的中上方。另一个问题是，当屏幕是手机大小并且汉堡图标可见时，我不知道如何删除黑条。

Demo

   <!DOCTYPE html>
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet"
    href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<script
    src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>

</head>
<body>
<header>
    <div class="container-fluid">
        <div class="row">
            <div class="container">
                <div class="row">
                    <div class=" col-md-12 col-sm-12 col-xs-12 search-container">
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>

                    </div>
                </div>
            </div>
            <nav class="navbar-inverse navbar-static-top" role="navigation">
    <div class="container">
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
        </div>
        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li><a href="#">Home</a></li>
                <li><a href="#">About</a></li>
                <li><a href="#portfolio">Portfolio</a></li>
                <li><a href="#">Contact</a></li>
            </ul>
        </div>
    </div>
</nav>  

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

不确定中间部分，但其他部分应该可以工作。

.navbar-inverse .navbar-nav > li > a:hover, .navbar-inverse .navbar-nav > li > a:focus, .navbar-inverse .navbar-nav > li > a{
  padding: 10px !important;
} 
.navbar-header {
    background-color: white; //or inherit whatever you like
}

.navbar-toggle.collapsed {
    background-color: black;
}

Niklas Brunberg 完成的演示

对于中间对齐菜单，使用类似的css

.navbar-inverse .navbar-nav > li > a:hover, .navbar-inverse .navbar-nav > li > a:focus, .navbar-inverse .navbar-nav > li > a{
  padding: 10px !important;
}
.navbar-inverse {
  position: absolute;
  top:50%;
  width:100%;
  left: 0
}

如果您想删除背景色，请使用css

        @media only screen and (max-width : 480px) {
.navbar-inverse{
  background: transparent;
}
  .navbar-inverse .navbar-toggle:hover, .navbar-inverse .navbar-toggle:focus{
    background: transparent;
  }
  .navbar-inverse .navbar-toggle{
    border: 0px none;
  }
    .navbar-inverse .navbar-toggle .icon-bar {
    background: #666;
}
}

此媒体查询仅适用于移动屏幕

希望这将帮助您

当显示在桌面上时，我将菜单项居中，然后当最小化到手机大小时，背景栏变为白色，然后汉堡图标将变为黑色

链接到plunker

演示

我已经用bootstrap做了很多工作，所以我建议你用自己的类扩展它们的原始风格，而不是覆盖所有东西。我的建议基于flexbox，并使用自定义类作为一种使事情按需工作的方式。

看看吧，希望能有所帮助。（：

JSFiddle链接：https://jsfiddle.net/ce7L0nez/

CSS：

.center-md-content {
    display: flex!important;
    align-items: center;
    justify-content: center;
}
.center-md-content .navbar-nav {
    float: none;
}
@media only screen and (max-width : 768px) {
    .sm-no-background {
        background-color: transparent;
    }
    .sm-no-background .navbar-header {
        margin-left: auto;
    }
    .sm-no-background .navbar-toggle .icon-bar {
        background-color: #333;
    }
    .sm-no-background .navbar-toggle {
        border: 0;
    }
    .sm-no-background .navbar-toggle:hover .icon-bar {
        background-color: #FFF;
    }
}

HTML:

  <header>
    <div class="container-fluid">
        <div class="row">
            <div class="container">
                <div class="row">
                    <div class=" col-md-12 col-sm-12 col-xs-12 search-container">
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                        <p>THIS IS A TEST</p>
                    </div>
                </div>
            </div>
            <nav class="navbar-inverse navbar-static-top sm-no-background" role="navigation">
                <div class="container center-md-content">
                    <div class="navbar-header">
                        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"> <span class="sr-only">Toggle navigation</span>
 <span class="icon-bar"></span>
 <span class="icon-bar"></span>
 <span class="icon-bar"></span>
                        </button>
                    </div>
                    <!-- Collect the nav links, forms, and other content for toggling -->
                    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                        <ul class="nav navbar-nav">
                            <li><a href="#">Home</a>
                            </li>
                            <li><a href="#">About</a>
                            </li>
                            <li><a href="#portfolio">Portfolio</a>
                            </li>
                            <li><a href="#">Contact</a>
                            </li>
                        </ul>
                    </div>
                </div>
            </nav>

Demo

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