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HTML Style backgroundOrigin用法及代码示例


HTML DOM中的Style backgroundOrigin属性用于确定背景图像相对于位置的位置。它可能是相对于填充，边框或实际内容而言的。

用法:

  • 它返回backgroundOrigin属性。
    object.style.backgroundOrigin
  • 它用于设置backgroundOrigin属性。
    object.style.backgroundOrigin = "padding-box|border-box|initial|
content-box|inherit"

属性值：


  • padding-box：此值将图像相对于左上方的填充边放置。它是默认值。
  • border-box：此值相对于边界边(绝对左上角)定位图像。
  • content-box：此值相对于元素实际内容的开头定位图像。
  • initial:它用于将此属性设置为其默认值。
  • inherit:它从其父元素继承属性。

padding-box：此值相对于左上角的填充边定位图像。它是默认值。

例：

<!DOCTYPE html> 
<html> 
      
<head> 
    <title> 
        DOM Style backgroundOrigin Property 
    </title> 
      
    <style> 
        .bg-img { 
            height:200px; 
            width:200px; 
            padding:10px; 
            border:10px dotted; 
            margin-bottom:10px; 
            background:url( 
'https://media.geeksforgeeks.org/wp-content/uploads/20190311222622/sample-image.png') 
            no-repeat; 
            background-size:100px; 
            background-origin:content-box; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green"> 
        GeeksforGeeks 
    </h1> 
      
    <b>DOM Style backgroundOrigin Property</b> 
      
    <p> 
        Click on the button to change the origin  
        property of the background image to padding-box 
    </p> 
      
    <div class="bg-img"> 
        GeeksforGeeks contains well written, well 
        thought and well explained computer science 
        and programming articles, quizzes and 
        practice questions. 
    </div> 
      
    <button onclick="changeOrigin()"> 
        Change backgroundOrigin 
    </button> 
  
    <!-- Script to change backgroundOrigin property -->
    <script> 
        function changeOrigin() { 
            elem = document.querySelector('.bg-img'); 
            elem.style.backgroundOrigin = 'padding-box'; 
        } 
    </script> 
</body> 
  
</html>                    

输出：

  • 在单击按钮之前：
    padding-before
  • 单击按钮后：
    padding-after

border-box：此值相对于边界边(绝对左上角)定位图像。

例：

<!DOCTYPE html> 
<html> 
      
<head> 
    <title> 
        DOM Style backgroundOrigin Property 
    </title> 
      
    <style> 
        .bg-img { 
            height:200px; 
            width:200px; 
            padding:10px; 
            border:10px dotted; 
            margin-bottom:10px; 
            background:url( 
'https://media.geeksforgeeks.org/wp-content/uploads/20190311222622/sample-image.png') 
            no-repeat; 
            background-size:100px; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green"> 
        GeeksforGeeks 
    </h1> 
      
    <b>DOM Style backgroundOrigin Property</b> 
      
    <p> 
        Click on the button to change the origin  
        property of the background image to padding-box 
    </p> 
      
    <div class="bg-img"> 
        GeeksforGeeks contains well written, well 
        thought and well explained computer science 
        and programming articles, quizzes and 
        practice questions. 
    </div> 
      
    <button onclick="changeOrigin()"> 
        Change backgroundOrigin 
    </button> 
  
    <!-- Script to change backgroundOrigin property -->
    <script> 
        function changeOrigin() { 
            elem = document.querySelector('.bg-img'); 
            elem.style.backgroundOrigin = 'border-box'; 
        } 
    </script> 
</body> 
  
</html>                    

输出：

  • 在单击按钮之前：
    border-before
  • 单击按钮后：
    border-after

content-box：此值相对于元素实际内容的开头定位图像。

例：

<!DOCTYPE html> 
<html> 
      
<head> 
    <title> 
        DOM Style backgroundOrigin Property 
    </title> 
      
    <style> 
        .bg-img { 
            height:200px; 
            width:200px; 
            padding:10px; 
            border:10px dotted; 
            margin-bottom:10px; 
            background:url( 
'https://media.geeksforgeeks.org/wp-content/uploads/20190311222622/sample-image.png') 
            no-repeat; 
            background-size:100px; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green"> 
        GeeksforGeeks 
    </h1> 
      
    <b>DOM Style backgroundOrigin Property</b> 
      
    <p> 
        Click on the button to change the origin  
        property of the background image to padding-box 
    </p> 
      
    <div class="bg-img"> 
        GeeksforGeeks contains well written, well 
        thought and well explained computer science 
        and programming articles, quizzes and 
        practice questions. 
    </div> 
      
    <button onclick="changeOrigin()"> 
        Change backgroundOrigin 
    </button> 
  
    <!-- Script to change backgroundOrigin property -->
    <script> 
        function changeOrigin() { 
            elem = document.querySelector('.bg-img'); 
            elem.style.backgroundOrigin = 'content-box'; 
        } 
    </script> 
</body> 
  
</html>                    

输出：

  • 在单击按钮之前：
    content-before
  • 单击按钮后：
    content-after

初始值：用于将此属性设置为其默认值。


例：

<!DOCTYPE html> 
<html> 
      
<head> 
    <title> 
        DOM Style backgroundOrigin Property 
    </title> 
      
    <style> 
        .bg-img { 
            height:200px; 
            width:200px; 
            padding:10px; 
            border:10px dotted; 
            margin-bottom:10px; 
            background:url( 
'https://media.geeksforgeeks.org/wp-content/uploads/20190311222622/sample-image.png') 
            no-repeat; 
            background-size:100px; 
            background-origin:content-box; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green"> 
        GeeksforGeeks 
    </h1> 
      
    <b>DOM Style backgroundOrigin Property</b> 
      
    <p> 
        Click on the button to change the origin  
        property of the background image to padding-box 
    </p> 
      
    <div class="bg-img"> 
        GeeksforGeeks contains well written, well 
        thought and well explained computer science 
        and programming articles, quizzes and 
        practice questions. 
    </div> 
      
    <button onclick="changeOrigin()"> 
        Change backgroundOrigin 
    </button> 
  
    <!-- Script to change backgroundOrigin property -->
    <script> 
        function changeOrigin() { 
            elem = document.querySelector('.bg-img'); 
            elem.style.backgroundOrigin = 'initial'; 
        } 
    </script> 
</body> 
  
</html>                    

输出：

  • 在单击按钮之前：
    initial-before
  • 单击按钮后：
    initial-after

继承：它从其父元素继承属性。

例：

<!DOCTYPE html> 
<html> 
      
<head> 
    <title> 
        DOM Style backgroundOrigin Property 
    </title> 
      
    <style> 
          
        /* Parent element */ 
        #parent { 
            height:250px; 
            width:250px; 
            background-origin:border-box; 
        } 
  
        .bg-img { 
            height:200px; 
            width:200px; 
            padding:10px; 
            margin-bottom:50px; 
            border:10px dotted; 
            background:url( 
'https://media.geeksforgeeks.org/wp-content/uploads/20190311222622/sample-image.png')  
            no-repeat; 
            background-size:100px; 
        } 
    </style> 
</head> 
  
<body> 
    <h1 style="color:green"> 
        GeeksforGeeks 
    </h1> 
      
    <b> 
        DOM Style backgroundOrigin Property 
    </b> 
      
    <p> 
        Click on the button to change the origin 
        property of the background image to inherit 
    </p> 
      
    <div id="parent"> 
        <div class="bg-img"> 
            GeeksforGeeks contains well written, well 
            thought and well explained computer 
            science and programming articles, quizzes 
            and practice questions. 
        </div> 
    </div> 
  
    <button onclick="changeOrigin()"> 
        Change origin of background image 
    </button> 
  
    <!-- Script to change backgroundOrigin -->
    <script> 
        function changeOrigin() { 
            elem = document.querySelector('.bg-img'); 
            elem.style.backgroundOrigin = 'inherit'; 
        } 
    </script> 
</body> 
  
</html>                    

输出：

  • 在单击按钮之前：
    alt =“ inherit-before” width =“ 479” height =“ 345” class =“ alignnone size-full wp-image-947844” />
  • 单击按钮后：
    inherit-after

支持的浏览器：下面列出了DOM Style backgroundOrigin属性支持的浏览器：

  • 谷歌浏览器4.0
  • Internet Explorer 9.0
  • Firefox 4.0
  • Opera 10.5
  • Safari 3.0


相关用法


注：本文由纯净天空筛选整理自sayantanm19大神的英文原创作品 HTML | DOM Style backgroundOrigin Property。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。