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技术文章  >  web前端 > css教程

CSS 内容框值

WBOY
WBOY 转载
2023-08-27 09:17:02 211浏览

CSS 内容框值

使用 CSSbackground-origin 属性设置内容框值。通过 content-box 值，背景图像从内容的左上角开始。

示例

现场演示

<!DOCTYPE html>
<html>
   <head>
      <style>
         #value1 {
            border: 3px solid blue;
            padding: 30px;
            background: url(https://www.tutorialspoint.com/assets/videotutorials/courses/html_online_training/380_course_216_image.jpg);
            background-repeat: no-repeat;
            background-origin: padding-box;
         }

         #value2 {
            border: 3px solid orange;
            padding: 30px;
            background: url(https://www.tutorialspoint.com/assets/videotutorials/courses/html_online_training/380_course_216_image.jpg);
            background-repeat: no-repeat;
            background-origin: border-box;
         }

         #value3 {
            border: 3px dashed yellow;
            padding: 30px;
            background: url(https://www.tutorialspoint.com/assets/videotutorials/courses/html_online_training/380_course_216_image.jpg);
            background-repeat: no-repeat;
            background-origin: content-box;
         }
      </style>
   </head>

   <body>
      <h1>padding-box value</h1>
      <div id = "value1">
         <h2>Heading 2</h2>
         <p>This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text.
         <h3>Heading 3</h3>
         This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text.</p>
      </div>

      <h1>border-box value</h1>
      <div id = "value2">
         <h2>Heading 2</h2>
         <p>This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text.
         <h3>Heading 3</h3>
         This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text.</p>
      </div>

      <h1>content-box value</h1>
      <div id = "value3">
         <h2>Heading 2</h2>
         <p>This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text.
         <h3>Heading 3</h3>
         This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text. This is demo text.</p>
      </div>
   </body>
</html>

以上就是CSS 内容框值的详细内容，更多请关注php中文网其它相关文章！

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