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Bootstrap学习（3）_html/css_WEB-ITnose

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Jun 24, 2016 am 11:34 AM

Bootstrap 图片

　　 Bootstrap 对图片的支持。Bootstrap 提供了三个可对图片应用简单样式的 class：

.img-rounded：添加 border-radius:6px 来获得图片圆角。

.img-circle：添加 border-radius:500px 来让整个图片变成圆形。

.img-thumbnail：添加一些内边距（padding）和一个灰色的边框。

请看下面的实例演示：

<!DOCTYPE html><html><head>   <title>Bootstrap 实例 - 图像</title>   <link href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet">   <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>   <script src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script></head><body><img  class="img-rounded lazy"  src="/static/imghwm/default1.png"  data-src="/wp-content/uploads/2014/06/download.png"  alt="Bootstrap学习（3）_html/css_WEB-ITnose" ><img  class="img-circle lazy"  src="/static/imghwm/default1.png"  data-src="/wp-content/uploads/2014/06/download.png"  alt="Bootstrap学习（3）_html/css_WEB-ITnose" ><img  class="img-thumbnail lazy"  src="/static/imghwm/default1.png"  data-src="/wp-content/uploads/2014/06/download.png"  alt="Bootstrap学习（3）_html/css_WEB-ITnose" ></body></html>

显示结果如下：

类

以下类可用于任何图片中。

类描述

.img-rounded	为图片添加圆角 (IE8 不支持)
.img-circle	将图片变为圆形 (IE8 不支持)
.img-thumbnail	缩略图功能
.img-responsive	图片响应式 (将很好地扩展到父元素)

圆角的图片

      <meta name="viewport" content="width=device-width, initial-scale=1">    <link rel="stylesheet" href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css">        <div style="color:white">      <h2 id="图片">图片</h2>      <p> .img-rounded 类为图片添加圆角 (IE8 不支持):</p>                  <img class="img-rounded lazy" src="/static/imghwm/default1.png" data-src="1.jpg" alt="Cinque Terre"    style="max-width:90%"  style="max-width:90%">     </div>    <script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

效果如下图所示：

圆形的图片

<!DOCTYPE html><html>  <head>    <meta name="viewport" content="width=device-width, initial-scale=1">    <link rel="stylesheet" href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css">  </head>  <body style = "background-color:black">    <div class="container" style = "color:white">      <h2 id="图片">图片</h2>      <p> .img-rounded 类为图片添加圆角 (IE8 不支持):</p>                  <img class="img-circle lazy"  src="/static/imghwm/default1.png"  data-src="1.jpg"  alt="Cinque Terre"    style="max-width:90%"  style="max-width:90%">     </div>    <script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>  </body></html>

效果如下图所示

缩略图

<!DOCTYPE html><html>  <head>    <meta name="viewport" content="width=device-width, initial-scale=1">    <link rel="stylesheet" href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css">  </head>  <body style = "background-color:black">    <div class="container" style = "color:white">      <h2 id="图片">图片</h2>      <p> .img-thumbnail 类可制作图片缩略图:</p>                  <img class="img-thumbnail lazy"  src="/static/imghwm/default1.png"  data-src="1.jpg"  alt="Cinque Terre"    style="max-width:90%"  style="max-width:90%">     </div>    <script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>  </body></html>

效果如下图所示：

响应式图片

通过在 Bootstrap学习（3）_html/css_WEB-ITnose 标签添加 .img-responsive 类来让图片支持响应式设计。图片将很好地扩展到父元素。

.img-responsive 类将 max-width: 100%; 和 height: auto; 样式应用在图片上：

      <meta name="viewport" content="width=device-width, initial-scale=1">    <link rel="stylesheet" href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css">        <div style="color:white">      <h2 id="图片">图片</h2>      <p> .img-thumbnail 类可制作图片缩略图:</p>                  <img class="img-responsive lazy" src="/static/imghwm/default1.png" data-src="1.jpg" alt="Cinque Terre"    style="max-width:90%"  style="max-width:90%">     </div>    <script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>    <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>

效果如下图所示

　　Bootstrap学习（1）：

Bootstrap学习（2）：

　　致谢：感谢您的阅读！

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