引导|关闭图标，通过示例消除内容
原文:https://www . geeksforgeeks . org/bootstrap-close-icon-for-discovery-content-with-examples/
引导中的关闭图标是一个实用程序，用于关闭任何内容(例如，警报、模式、弹出窗口)。它由一个通用的交叉/关闭图标表示。 下面是一个示例 HTML 代码，包括一个关闭图标，用于关闭引导中的内容:
超文本标记语言
<!doctype html>
<html>
<head>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js,
then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
<title>Close Icon!</title>
</head>
<body class="container mt-5">
<!--Close Icon-->
<button type="button" class="close">
<span>×</span>
</button>
</body>
</html>
注意:数据消除属性可以与按钮标签一起使用，以消除组件，如模式或警报。
关闭图标以消除警报
示例:
超文本标记语言
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<!-- Include JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
<style media="screen">
h1{
color:green;
font-weight: bold;}
</style>
<title>Close Icon!</title>
</head>
<body class="container">
<h1>This is GeeksforGeeks!</h1>
<!--Alert-->
<div class="alert alert-success alert-dismissible
fade show w-50" role="alert">
<strong>Hello geeks!</strong>
<!--Close Icon-->
<button type="button" class="btn close"
data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
</body>
</html>
输出: 前:
之后:
关闭图标以关闭模式
示例:
超文本标记语言
<!DOCTYPE html>
<html>
<head>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<style media="screen">
h1{
color:green;
font-weight: bold;}
</style>
<title>Close Icon!</title>
<!-- Include JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
</head>
<body class="container mt-5">
<!-- Button trigger modal -->
<button type="button" class="btn btn-success"
data-toggle="modal" data-target="#geekymodal">
Click here to launch modal!
</button>
<!-- Modal -->
<div class="modal fade" id="geekymodal"
tabindex="-1" role="dialog" aria-labelledby="geekymodal"
aria-hidden="true">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h1 class="modal-title">
GeeksforGeeks!
</h1>
<!--Close Icon-->
<button type="button" class="btn close"
data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
Hey geeks, You're Welcome!
</div>
</div>
</div>
</div>
</body>
</html>
输出: 前:
之后:
支持的浏览器:
- 谷歌 Chrome
- 微软公司出品的 web 浏览器
- 火狐浏览器
- 歌剧
- 旅行队
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