background-blend-mode
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.
概述
background-blend-mode CSS 属性定义该元素的背景图片，以及背景色如何混合。
混合模式应该按background-image CSS 属性同样的顺序定义。如果混合模式数量与背景图像的数量不相等，它会被截取至相等的数量。
| 初始值 | normal |
|---|---|
| 适用元素 | All elements. In SVG, it applies to container elements, graphics elements, and graphics referencing elements.. It also applies to ::first-letter and ::first-line. |
| 是否是继承属性 | 否 |
| 计算值 | as specified |
| 动画类型 | Not animatable |
语法
css
/* 单值 */
background-blend-mode: normal;
/* 双值，一个值对应一个背景 */
background-blend-mode: darken, luminosity;
/* 全局值 */
background-blend-mode: inherit;
background-blend-mode: initial;
background-blend-mode: revert;
background-blend-mode: revert-layer;
background-blend-mode: unset;
值
<blend-mode>-
一个定义混合的模式，可以有多个值，用逗号间隔。
形式定义
| 初始值 | normal |
|---|---|
| 适用元素 | All elements. In SVG, it applies to container elements, graphics elements, and graphics referencing elements.. It also applies to ::first-letter and ::first-line. |
| 是否是继承属性 | 否 |
| 计算值 | as specified |
| 动画类型 | Not animatable |
形式语法
background-blend-mode =
<mix-blend-mode>#
示例
css
#div {
width: 300px;
height: 300px;
background: url("br.png"), url("tr.png");
background-blend-mode: screen;
}
js
document.getElementById("select").onchange = function (event) {
document.getElementById("div").style.backgroundBlendMode =
document.getElementById("select").selectedOptions[0].innerHTML;
};
console.log(document.getElementById("div"));
规范
| Specification |
|---|
| Compositing and Blending Level 2 # background-blend-mode |