我将如何去修改CSS来改变Twitter Bootstrap 3中的导航栏的颜色?
您可以创建自定义的导航栏类,然后引用它来更改导航栏而不会影响其他的Bootstrap导航。
<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>
Bootstrap 3 CSS
.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;
}
如果导航栏有下拉菜单,请添加以下内容以更改下拉菜单的颜色:
/* 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;
}
Bootstrap 4更新
我知道原来的问题是为3.x,但我认为一个新的Bootstrap 4的例子也会有所帮助。Bootstrap 4中所需的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;
}
可用的导航栏
你有两个基本的navbars:
<!-- A light one -->
<nav class="navbar navbar-default" role="navigation"></nav>
<!-- A dark one -->
<nav class="navbar navbar-inverse" role="navigation"></nav>
默认的颜色使用
这里是主要颜色和它们的用法:
#F8F8F8:navbar背景
#E7E7E7:navbar边框
#777:默认颜色
#333:悬停颜色(#5E5E5E为.nav-brand)
#555:活动的颜色
#D5D5D5:活动背景
默认样式
如果你想放置一些自定义的风格,这里是你需要改变的CSS:
/* 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;
}
/* Mobile version */
.navbar-default .navbar-toggle {
border-color: #DDD;
}
.navbar-default .navbar-toggle:hover,
.navbar-default .navbar-toggle:focus {
background-color: #DDD;
}
.navbar-default .navbar-toggle .icon-bar {
background-color: #CCC;
}
@media (max-width: 767px) {
.navbar-default .navbar-nav .open .dropdown-menu > li > a {
color: #777;
}
.navbar-default .navbar-nav .open .dropdown-menu > li > a:hover,
.navbar-default .navbar-nav .open .dropdown-menu > li > a:focus {
color: #333;
}
}
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