shape-outside
Baseline 广泛可用 *
shape-outside CSS 属性定义了一个形状(可以是任意非矩形形状),相邻的行内内容将围绕这个形状进行环绕。默认情况下,行内内容会围绕其外边距框进行环绕;shape-outside 提供了一种自定义环绕方式的方法,使得文本可以围绕复杂对象而不是矩形框进行环绕。
试一试
shape-outside: circle(50%);
shape-outside: ellipse(130px 140px at 20% 20%);
shape-outside: url("/shared-assets/images/examples/round-balloon.png");
shape-outside: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
<section class="default-example" id="default-example">
<div class="example-container">
<img
class="transition-all"
id="example-element"
src="/shared-assets/images/examples/round-balloon.png"
width="150" />
We had agreed, my companion and I, that I should call for him at his house,
after dinner, not later than eleven o’clock. This athletic young Frenchman
belongs to a small set of Parisian sportsmen, who have taken up “ballooning”
as a pastime. After having exhausted all the sensations that are to be found
in ordinary sports, even those of “automobiling” at a breakneck speed, the
members of the “Aéro Club” now seek in the air, where they indulge in all
kinds of daring feats, the nerve-racking excitement that they have ceased to
find on earth.
</div>
</section>
.example-container {
text-align: left;
padding: 20px;
}
#example-element {
float: left;
width: 150px;
margin: 20px;
}
语法
/* Keyword values */
shape-outside: none;
shape-outside: margin-box;
shape-outside: content-box;
shape-outside: border-box;
shape-outside: padding-box;
/* Function values */
shape-outside: circle();
shape-outside: ellipse();
shape-outside: inset(10px 10px 10px 10px);
shape-outside: polygon(10px 10px, 20px 20px, 30px 30px);
/* Shape box with basic shape */
shape-outside: circle() border-box;
shape-outside: margin-box ellipse();
/* <url> value */
shape-outside: url("image.png");
/* <gradient> value */
shape-outside: linear-gradient(45deg, white 150px, red 150px);
/* Global values */
shape-outside: inherit;
shape-outside: initial;
shape-outside: revert;
shape-outside: revert-layer;
shape-outside: unset;
shape-outside 属性使用以下列表中定义的值来指定,这些值定义了浮动元素的浮动区域。浮动区域决定了行内内容(浮动元素)环绕的形状。
值
none-
浮动区域不受影响。行内内容像往常一样围绕元素的外边距框进行环绕。
<shape-box>-
浮动区域根据浮动元素的边缘形状计算(由 CSS 盒模型定义)。这可以是
margin-box、border-box、padding-box或content-box。形状包括由border-radius属性创建的任何曲率(其行为类似于background-clip)。margin-box-
定义由外部外边距边缘包围的形状。此形状的圆角由相应的
border-radius和margin值确定。如果border-radius / margin比率是1或更大,则外边距框圆角半径是border-radius + margin。如果比率小于1,则外边距框圆角半径是border-radius + (margin * (1 + (ratio - 1) ^ 3))。 border-box-
定义由外部边框边缘包围的形状。该形状遵循正常的边框外部圆角成形规则。
padding-box-
定义由外部内边距边缘包围的形状。该形状遵循正常的边框内部圆角成形规则。
content-box-
定义由外部内容边缘包围的形状。此框的每个圆角半径都是
0或border-radius - border-width - padding中的较大者。
<basic-shape>-
浮动区域根据由
inset()、circle()、ellipse()或polygon()函数创建的形状进行计算;其他<basic-shape>函数无效。如果还提供了<shape-box>,它将定义<basic-shape>函数的参考框。否则,参考框默认为margin-box。 <image>-
浮动区域根据指定的
<image>的 alpha 通道进行提取和计算,如shape-image-threshold所定义。
注意:如果图像无效,其效果等同于指定了关键词 none。此外,图像必须使用允许其使用的 CORS 头部提供。
正式定义
| 初始值 | none |
|---|---|
| 应用于 | 浮动 |
| 继承性 | 否 |
| 计算值 | 如 <basic-shape> 所定义(如果提供,后面跟着 shape-box),<image> 的 URI 变为绝对路径,否则按指定。 |
| 动画类型 | 是,如 <basic-shape> 所指定,否则否 |
正式语法
shape-outside =
none |
[ <basic-shape> || <shape-box> ] |
<image>
<shape-box> =
<visual-box> |
margin-box |
half-border-box
<image> =
<url> |
<image()> |
<image-set()> |
<cross-fade()> |
<element()> |
<gradient>
<visual-box> =
content-box |
padding-box |
border-box
<image()> =
image( <image-tags>? [ <image-src>? , <color>? ]! )
<image-set()> =
image-set( <image-set-option># )
<cross-fade()> =
cross-fade( <cf-image># )
<element()> =
element( <id-selector> )
<image-tags> =
ltr |
rtl
<image-src> =
<url> |
<string>
<image-set-option> =
[ <image> | <string> ] [ <resolution> || type( <string> ) ]?
<cf-image> =
[ <image> | <color> ] &&
<percentage [0,100]>?
<id-selector> =
<hash-token>
示例
文本汇聚
HTML
<div class="main">
<div class="left"></div>
<div class="right"></div>
<p>
Sometimes a web page's text content appears to be funneling your attention
towards a spot on the page to drive you to follow a particular link.
Sometimes you don't notice.
</p>
</div>
CSS
.main {
width: 530px;
}
.left,
.right {
background-color: lightgray;
height: 12ex;
width: 40%;
}
.left {
clip-path: polygon(0 0, 100% 100%, 0 100%);
float: left;
shape-outside: polygon(0 0, 100% 100%, 0 100%);
}
.right {
clip-path: polygon(100% 0, 100% 100%, 0 100%);
float: right;
shape-outside: polygon(100% 0, 100% 100%, 0 100%);
}
p {
text-align: center;
}
结果
规范
| 规范 |
|---|
| CSS Shapes Module Level 1 # shape-outside-property |
浏览器兼容性
加载中…