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法律研究CSS padding-box 值
使用 CSS background-origin 属性设置 padding-box 值。借助 padding-box 值，背景图像从填充边缘的左上角开始。
你可以尝试运行以下代码来实现 padding-box 值
示例
<!DOCTYPE html>
<html>
<head>
<style>
#value1 {
border: 3px solid blue;
padding: 30px;
background: url(https://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://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://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.</p>
<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>
更新于： 2020 年 6 月 23 日
191 次浏览
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