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CSS进阶

CSS background-clip

CSS background-clip属性指定背景的绘制区域。它通过应用剪切框来限制背景颜色或图像出现的区域。
它设置元素的背景是否在border-box,padding-box和content-box下延伸。

语法

background-clip: border-box| padding-box| content-box| inherit;
让我们理解属性值以及每个属性的示例。

border-box

这是默认值。这意味着将在边框内绘制背景图像和颜色。它设置背景颜色,该颜色分布在整个分区上。

示例

<!DOCTYPE html>
<html>
    <head>
        <style>
            div {
                background-color: yellow;
                background-clip: border-box;
                text-align: center;
                border:5px dotted blue;
            }
h1,h2{
color: red;
}
        </style>
    </head>
    <body>
        <div>
            <h1>
              Welcome to the lidihuo.com
            </h1>
            <h2>
                background-clip: border-box;
            </h2>
        </div>
    </body>
</html>
输出:
background-clip

padding-box

它在边框内设置背景,即背景图像和颜色绘制在填充框内。

示例

<!DOCTYPE html>
<html>
    <head>
        <style>
            div {
                background-color: yellow;
                background-clip: padding-box;
padding: 25px;
                text-align: center;
                border:5px dashed blue;
            }
h1,h2{
color: red;
}
        </style>
    </head>
    <body>
        <div>
            <h1>
              Welcome to the lidihuo.com
            </h1>
            <h2>
                background-clip: padding-box;
            </h2>
        </div>
    </body>
</html>
输出:
background-clip

content-box

它仅将背景色设置为内容。背景绘制在内容框中,即背景图像和颜色将在内容框中绘制。

示例

<!DOCTYPE html>
<html>
    <head>
        <style>
            div {
                background-color: yellow;
                background-clip: content-box;
padding: 15px;
                text-align: center;
                border:5px dashed blue;
            }
h1,h2{
color: red;
}
        </style>
    </head>
    <body>
        <div>
            <h1>
              Welcome to the lidihuo.com
            </h1>
            <h2>
                background-clip: content-box;
            </h2>
        </div>
    </body>
</html>
输出:
background-clip
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