Bootstrap提供了以下类来为图像添加样式：
.img- rounded-添加border-radius：6px 以使图像具有圆角。
.img-circle- 通过添加border-radius：500px使整个图像变圆。
.img-缩略图-添加一些填充和灰色边框
您可以尝试运行以下代码以向图像添加样式
<!DOCTYPE html> <html> <head> <title>Bootstrap Images</title> <link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet"> <script src = "/scripts/jquery.min.js"></script> <script src = "/bootstrap/js/bootstrap.min.js"></script> </head> <body> <p>Styling images with Bootstrap</p> <img src = "/bootstrap/images/download.png" class = "img-rounded"> <img src = "/bootstrap/images/download.png" class = "img-circle"> <img src = "/bootstrap/images/download.png" class = "img-thumbnail"> </body> </html>