How to implement rounded borders in bootstrap

Bootstrap supports images.

.img-thumbnail: Add some padding and a gray border.

If other elements require rounded borders, this can be achieved by setting .border-radius and .border. (Recommended learning: Bootstrap video tutorial)

Example:

nbsp;html>


  <title>Bootstrap 实例</title>
  <meta>
  <meta>
  <link>
  <script></script>
  <script></script>
  <script></script>



<div>
  <h2 id="缩略图">缩略图</h2>
  <p>.img-thumbnail 类用于设置图片缩略图(图片有边框):</p>            
  <img  class="img-thumbnail lazy" src="/static/imghwm/default1.png" data-src="https://static.runoob.com/images/mix/cinqueterre.jpg" alt="How to implement rounded borders in bootstrap" >
</div>

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