Bootstrap 4是一种流行的前端框架,可用于构建响应式、移动设备优先的网站和应用程序。
使用Bootstrap 4需要先引入相关的CSS和JavaScript文件。可以通过以下步骤来使用Bootstrap。
下面是一段关于Bootstrap 4构建简单的轮播图功能;
<!DOCTYPE html><html><head> <title>Bootstrap4 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdn.bootcss.com/popper.js/1.12.5/umd/popper.min.js"></script> <script src="https://cdn.bootcss.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> <style> /* Make the image fully responsive */ .carousel-inner img { width: 100%; height: 100%; } </style></head><body><div id="demo" class="carousel slide" data-ride="carousel"> <!-- 指示符 --> <ul class="carousel-indicators"> <li data-target="#demo" data-slide-to="0" class="active"></li> <li data-target="#demo" data-slide-to="1"></li> <li data-target="#demo" data-slide-to="2"></li> </ul> <!-- 轮播图片 --> <div class="carousel-inner"> <div class="carousel-item active"> <img src="/images/24575.png"> </div> <div class="carousel-item"> <img src="/images/31740.png"> </div> <div class="carousel-item"> <img src="/images/30601.png"> </div> </div> <!-- 左右切换按钮 --> <a class="carousel-control-prev" href="#demo" data-slide="prev"> <span class="carousel-control-prev-icon"></span> </a> <a class="carousel-control-next" href="#demo" data-slide="next"> <span class="carousel-control-next-icon"></span> </a></div></body></html>