Css 简明教程

CSS - box-decoration-break

CSS box-decoration-break 属性规定元素如何处理字背景、内边距、边框、圆角的细分,这些元素在多个行或列中被分割。它控制这些属性是否应连续或跨行分解。

CSS box-decoration-break property specifies how the background, padding, border, and border-radius of an element should behave when the content is broken across multiple lines or columns. It controls whether these properties should be continuous or fragmented across the line breaks.

此属性将影响以下属性的显示:

This property will affect the appearance of the following properties:

Possible Values

  1. slice − This is the default value. It means that the padding, border, and background of the element will be rendered as if the content were not broken, resulting in continuous rendering across line breaks.

  2. clone − Each box fragment is rendered individually with its defined border, padding, and margin wrapping it. The border-radius, [role="bare"]css_border-image.html, and box-shadow are applied to each fragment separately. When background-repeat is set to no-repeat, the background picture may repeat for each fragment individually.

Applies to

所有元素。

All elements.

Syntax

box-decoration-break = slice | clone;

CSS box-decoration - slice Value

以下示例演示了在多行中分解时 box-decoration-break: slice 属性如何在方框之间切分 −

The following example demonstrates the box-decoration-break: slice property slices between boxes when broken across multiple lines −

<html>
<head>
<style>
   .box {
      background-color: lightpink;
      border: 5px solid green;
      padding:  5px;
      border-radius: 15px;
      line-height: 3;
      -webkit-box-decoration-break: slice;
      box-decoration-break: slice;
   }
</style>
</head>
<body>
   <span class="box">CSS<br>box-decoration-break - <br> slice<br>Value</span>
</body>
</html>

CSS box-decoration - clone Value

以下示例演示了 box-decoration-break: clone 属性如何控制在多个行或列中分解时方框的显示 −

The following example demonstrates the box-decoration-break: clone property controls how a box displays when it is broken across multiple lines or columns −

<html>
<head>
<style>
   .box {
      background-color: lightpink;
      border: 5px solid green;
      padding:  5px;
      border-radius: 15px;
      line-height: 3;
      -webkit-box-decoration-break: clone;
      box-decoration-break: clone;
   }
</style>
</head>
<body>
   <span class="box">CSS<br>box-decoration-break - <br> clone<br>Value</span>
</body>
</html>

CSS box-decoration - Fragmentation With Multi-column Layouts

以下示例演示了一个块元素的多列布局,其中 box-decoration-break 属性采用 sliceclone 等不同值 −

The following example demonstrates a block element with multi-column layouts using box-decoration-break property with different values, such as slice and clone

<html>
<head>
<style>
      span {
      display: block;
      background: lightpink;
      border: 5px solid green;
      padding: 5px;
      border-radius: 20px;
      margin-left: 10px;
      line-height: 2;
   }
   .clone-box {
      -webkit-box-decoration-break: clone;
      -ms-box-decoration-break: clone;
      -o-box-decoration-break: clone;
      box-decoration-break: clone;
   }
   .box {
      -webkit-columns: 3;
      -moz-columns: 3;
      -ms-columns: 3;
      -o-columns: 3;
      columns: 3;
   }
   div {
      width: 63em;
   }
</style>
</head>
<body>
   <h3>Without fragmentation</h2>
   <div >
      <span>CSS<br>box-decoration-break - <br> clone Value</span>
   </div>
   <br>

   <h3>box-decoration-break: slice</h2>
   <div class="box">
      <span>CSS<br>box-decoration-break - <br> clone Value</span>
   </div>

   <h3>box-decoration-break: clone</h3>
   <div class="box">
      <span class="clone-box">CSS<br>box-decoration-break - <br> clone Value</span>
   </div>
</body>
</html>