引导5(更新2021年)

默认情况下，引导5中的导航栏是透明的。自Bootstrap 4以来，导航栏背景颜色、文本颜色、链接、下拉菜单和悬停样式的变化不大。

/* change the background color */
.navbar-custom {
    background-color: #4433cc;
}

/* change the brand and text color */
.navbar-custom .navbar-brand,
.navbar-custom .navbar-text {
    color: #ffcc00;
}

/* change the link color */
.navbar-custom .navbar-nav .nav-link {
    color: #ffbb00;
}

/* change the color of active or hovered links */
.navbar-custom .nav-item.active .nav-link,
.navbar-custom .nav-item:focus .nav-link,
.navbar-custom .nav-item:hover .nav-link {
    color: pink;
}

/* for dropdowns only */
.navbar-custom .navbar-nav .dropdown-menu {
    background-color: #ddaa11;
}

/* dropdown item text color */
.navbar-custom .navbar-nav .dropdown-item {
    color: #000000;
}

/* dropdown item hover or focus */
.navbar-custom .navbar-nav .dropdown-item:hover,
.navbar-custom .navbar-nav .dropdown-item:focus {
    color: #eeeeee;
    background-color: red;
}

引导5自定义导航条颜色演示

---

Bootstrap 4.3(2020年更新)

在Bootstrap 4中改变导航条的颜色是不同的(而且更容易一点)。你可以创建一个自定义导航栏类，然后引用它来改变导航栏，而不影响其他引导导航。

<nav class="navbar navbar-custom">...</nav>

引导 4.3+

在Bootstrap 4中，需要更改导航栏的CSS要少得多…

.navbar-custom {
    background-color: #ff5500;
}
/* change the brand and text color */
.navbar-custom .navbar-brand,
.navbar-custom .navbar-text {
    color: rgba(255,255,255,.8);
}
/* change the link color */
.navbar-custom .navbar-nav .nav-link {
    color: rgba(255,255,255,.5);
}
/* change the color of active or hovered links */
.navbar-custom .nav-item.active .nav-link,
.navbar-custom .nav-item:hover .nav-link {
    color: #ffffff;
}

引导4自定义导航条演示

改变活动/悬停链接的背景色也适用于相同的CSS，但如果你想让bg颜色填充整个链接的高度，你必须调整填充…

Py-0删除垂直填充从整个导航栏…

<nav class="navbar - navbar-expand-sm navbar-custom py-0">.

/* change the link color and padding  */
.navbar-custom .navbar-nav .nav-link {
    color: rgba(255,255,255,.5);
    padding: .75rem 1rem;
}

/* change the color and background color of active links */
.navbar-custom .nav-item.active .nav-link,
.navbar-custom .nav-item:hover .nav-link {
    color: #ffffff;
    background-color: #333;
}

Bootstrap 4更改链接和背景颜色演示

另请参阅:如何更改引导4导航栏按钮图标的颜色?

---

**Bootstrap 3**

    <nav class="navbar navbar-custom">
      <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">...
        </button>
        <a class="navbar-brand" href="#">Title</a>
      </div>
       ...
    </nav>


    .navbar-custom {
        background-color:#229922;
        color:#ffffff;
        border-radius:0;
    }
      
    .navbar-custom .navbar-nav > li > a {
        color:#fff;
    }
    
    .navbar-custom .navbar-nav > .active > a {
        color: #ffffff;
        background-color:transparent;
    }
          
    .navbar-custom .navbar-nav > li > a:hover,
    .navbar-custom .navbar-nav > li > a:focus,
    .navbar-custom .navbar-nav > .active > a:hover,
    .navbar-custom .navbar-nav > .active > a:focus,
    .navbar-custom .navbar-nav > .open >a {
        text-decoration: none;
        background-color: #33aa33;
    }
         
    .navbar-custom .navbar-brand {
        color:#eeeeee;
    }
    .navbar-custom .navbar-toggle {
        background-color:#eeeeee;
    }
    .navbar-custom .icon-bar {
        background-color:#33aa33;
    }

自定义导航条演示Bootply

---

如果导航栏有下拉菜单，添加以下内容来改变下拉菜单的颜色:

/* for dropdowns only */
.navbar-custom .navbar-nav .dropdown-menu  { 
  background-color: #33aa33;
}
.navbar-custom .navbar-nav .dropdown-menu>li>a  { 
  color: #fff;
}
.navbar-custom .navbar-nav .dropdown-menu>li>a:hover,.navbar-custom .navbar-nav .dropdown-menu>li>a:focus  { 
  color: #33aa33;
}

带下拉菜单的演示

---

如果你想一起改变主题颜色(在导航栏之外)，请看这个答案

在这个导航栏CSS中，设置为自己的颜色:

/* Navbar */ .navbar-default { background-color: #F8F8F8; border-color: #E7E7E7; } /* Title */ .navbar-default .navbar-brand { color: #777; } .navbar-default .navbar-brand:hover, .navbar-default .navbar-brand:focus { color: #5E5E5E; } /* Link */ .navbar-default .navbar-nav > li > a { color: #777; } .navbar-default .navbar-nav > li > a:hover, .navbar-default .navbar-nav > li > a:focus { color: #333; } .navbar-default .navbar-nav > .active > a, .navbar-default .navbar-nav > .active > a:hover, .navbar-default .navbar-nav > .active > a:focus { color: #555; background-color: #E7E7E7; } .navbar-default .navbar-nav > .open > a, .navbar-default .navbar-nav > .open > a:hover, .navbar-default .navbar-nav > .open > a:focus { color: #555; background-color: #D5D5D5; } /* Caret */ .navbar-default .navbar-nav > .dropdown > a .caret { border-top-color: #777; border-bottom-color: #777; } .navbar-default .navbar-nav > .dropdown > a:hover .caret, .navbar-default .navbar-nav > .dropdown > a:focus .caret { border-top-color: #333; border-bottom-color: #333; } .navbar-default .navbar-nav > .open > a .caret, .navbar-default .navbar-nav > .open > a:hover .caret, .navbar-default .navbar-nav > .open > a:focus .caret { border-top-color: #555; border-bottom-color: #555; }

也试试这个。这对我很管用。

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus {
  background-color: #00a950;
  color: #000000;
}

Use:

<nav class="navbar navbar-inverse" role="navigation"></nav>

navbar-inverse {
    background-color: #F8F8F8;
    border-color: #E7E7E7;
}

25+引导导航菜单代码

如果只是改变导航条的颜色，我的建议是使用:Bootstrap Magic。您可以更改导航栏的不同属性的值并查看预览。

以自定义CSS样式表或Less variables文件的形式下载结果。您可以通过输入字段和颜色选择器更改值。

你需要直接更改CSS吗?是什么……

<nav class="navbar navbar-inverse" style="background-color: #333399;">
<div class="container-fluid">
<div class="navbar-header">
  <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
    <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 class="collapse navbar-collapse" id="myNavbar">
  <ul class="nav navbar-nav">
    <li class="active"><a href="#">Home</a></li>
    <li><a href="#">About</a></li>
    <li><a href="#">Projects</a></li>
    <li><a href="#">Contact</a></li>
  </ul>
  <ul class="nav navbar-nav navbar-right">
    <li><a href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a></li>
  </ul>
</div>