1、引入 bubbly-bg.js 插件

<script src="js/bubbly-bg.js"></script>

2、配置参数

bubbly({
    animate: false, // default is true
    blur: 1, // default is 4
    bubbleFunc: () => `hsla(${Math.random() * 360}, 100%, 50%, ${Math.random() * 0.25})`, // default is () => `hsla(0, 0%, 100%, ${r() * 0.1})`)
    bubbles: 100, // default is Math.floor((canvas.width + canvas.height) * 0.02);
    canvas: document.querySelector("#background"), // default is created and attached
    colorStart: "#4c004c", // default is blue-ish
    colorStop: "#1a001a",// default is blue-ish
    compose: "lighter", // default is "lighter"
    shadowColor: "#0ff", // default is #fff
});

示例，黄色/粉色带红色/橙色/黄色气泡效果：

bubbly({
    colorStart: "#fff4e6",
    colorStop: "#ffe9e4",
    blur: 1,
    compose: "source-over",
    bubbleFunc: () => `hsla(${Math.random() * 50}, 100%, 50%, .3)`
});

该项目github地址：https://github.com/tipsy/bubbly-bg