如何在 Bootstrap 中改变汉堡托格勒的颜色？
原文:https://www . geesforgeks . org/how-change-hamburger-toggler-color-in-bootstrap/
在 Bootstrap 4 中，可以使用两种方法来更改汉堡包的颜色:
方法 1:使用内置的颜色类
hamburger toggler 颜色由两个用于更改导航栏中内容颜色的内置类控制:
- 。navbar-light: 这个类用于将导航栏内容的颜色设置为深色。它将更改 toggler 图标，使其具有更深的线条。
- 。nav bar-深色:该类用于将导航栏内容的颜色设置为浅色。它会将 toggler 图标更改为白线。
注:命名好像有点倒退。不应该吗？nav bar-深色使内容更暗。navbar 灯，让它更轻？深色和浅色代表背景的颜色，而不是导航栏上的内容。
示例:
<!DOCTYPE html>
<html>
<head>
<title>
How to change Hamburger Toggler color in Bootstrap ?
</title>
<!-- Include Bootstrap CSS -->
<link rel="stylesheet"
href=
"https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
</head>
<body>
<nav class="navbar navbar-light bg-lignt">
<a href="/" class="navbar-brand">
Light Toggler
</a>
<button class="navbar-toggler ml-auto"
type="button"
data-toggle="collapse"
data-target="#nav1">
<span class="navbar-toggler-icon my-toggler">
</span>
</button>
<div class="navbar-collapse collapse" id="nav1">
<ul class="navbar-nav mx-auto">
<li class="nav-item">
<a class="nav-link"
href="#">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link"
href="#">Link 2</a>
</li>
</ul>
</div>
</nav>
<nav class="navbar navbar-dark bg-dark">
<a href="/" class="navbar-brand">
Dark Toggler
</a>
<button class="navbar-toggler ml-auto"
type="button"
data-toggle="collapse"
data-target="#nav2">
<span class="navbar-toggler-icon">
</span>
</button>
<div class="navbar-collapse collapse"
id="nav2">
<ul class="navbar-nav mx-auto">
<li class="nav-item">
<a class="nav-link"
href="#">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link"
href="#">Link 2</a>
</li>
</ul>
</div>
</nav>
<div class="container">
<h1 style="color: green">
GeeksforGeeks
</h1>
<b>How to change Hamburger Toggler
color in Bootstrap ?</b>
<p>The above togglers use the default
color classes available for toggler.</p>
</div>
<script src=
"https://code.jquery.com/jquery-3.2.1.slim.min.js">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js">
</script>
<script src=
"https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js">
</script>
</body>
</html>
输出:
方法 2:为 toggler 创建一个自定义类
Bootstrap 使用一个 SVG 图像来表示 toggler。可以在图标内的线条上用修改后的颜色创建新的图像数据。图像数据中的笔画属性用于表示 RGB 值中的颜色。该值被修改为所需的颜色。
该新图标用于。navbar-toggler-icon 类具有背景图像，因此内置图标被这个新的 toggler 图标替换。
/更改图像数据描边属性中的颜色/ 。定制的托格勒。nav bar-toggler-icon { background-image:URL(" data:image/SVG+XML；charset=utf8、% 3cs VG viewBox = ' 0 0 32 32 ' xmlns = ' http://www . w3 . org/2000/SVG ' % 3E % 3 path stroke = ' rgba(0，128，0，0.8)' stroke-width = ' 2 ' stroke-line cap = ' round ' stroke-miterlimit = ' 10 ' d = ' M4 8h 24 M4 16h 24 24h 24 '/% 3E % 3C/SVG % 3E ")；
通过指定具有所需颜色的边框颜色属性来设置网格线的边框颜色。
/* Set the border color to the desired color */
.custom-toggler.navbar-toggler {
border-color: lightgreen;
}
示例:
<!DOCTYPE html>
<html>
<head>
<title>How to change Hamburger
Toggler color in Bootstrap ?</title>
<!-- Include Bootstrap CSS -->
<link rel="stylesheet"
href=
"https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<style>
/* Set the border color */
.custom-toggler.navbar-toggler {
border-color: lightgreen;
}
/* Setting the stroke to green using rgb values (0, 128, 0) */
.custom-toggler .navbar-toggler-icon {
background-image: url(
"data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(0, 128, 0, 0.8)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E");
}
</style>
</head>
<body>
<nav class="navbar navbar-dark bg-dark">
<a href="/" class="navbar-brand">Custom Toggler</a>
<button class="navbar-toggler ml-auto custom-toggler"
type="button"
data-toggle="collapse"
data-target="#nav3">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse" id="nav3">
<ul class="navbar-nav mx-auto">
<li class="nav-item">
<a class="nav-link" href="#">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 2</a>
</li>
</ul>
</div>
</nav>
<div class="container">
<h1 style="color: green">GeeksforGeeks</h1>
<b>How to change Hamburger Toggler color in Bootstrap ?</b>
<p>The above togglers use the a custom classe for the toggler.</p>
</div>
<script src=
"https://code.jquery.com/jquery-3.2.1.slim.min.js">
</script>
<script src=
"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js">
</script>
<script src=
"https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js">
</script>
</body>
</html>
输出:
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