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css background-origin attribute The background-origin attribute is used to set the positioning area of the background image. Syntax: background-origin: padding-box|border-box|content-box; The three attribute values represent respectively: positioning relative to the padding box, positioning relative to the border box, and positioning relative to the content box.
How to use the css background-origin attribute?
Function: Specifies the position relative to which the background-position attribute is positioned.
Syntax:
background-origin: padding-box|border-box|content-box;
Description: padding-box The background image is positioned relative to the padding box. border-box The background image is positioned relative to the border box. content-box The background image is positioned relative to the content box.
Note: If the background-attachment attribute of the background image is "fixed", this attribute has no effect.
css background-origin property usage example
<!DOCTYPE html>
<html>
<head>
<style>
div
{
border:1px solid black;
padding:35px;
background-image:url('https://img.php.cn/upload/article/000/005/656/5af270fd37755429.jpg');
background-repeat:no-repeat;
background-position:left;
}
#div1
{
background-origin:border-box;
}
#div2
{
background-origin:content-box;
}
</style>
</head>
<body>
<p>background-origin:border-box:</p>
<div id="div1">
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</div>
<p>background-origin:content-box:</p>
<div id="div2">
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</div>
</body>
</html>Effect output:
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