多彩分段页面加载进度条效果-html代码-BFW代码库

多彩分段页面加载进度条效果

代码语言：html

所属分类：进度条

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<style>
body {
  margin: 0;
  padding: 0;
  display: -webkit-box;
  display: flex;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  -webkit-box-align: center;
          align-items: center;
  -webkit-box-pack: center;
          justify-content: center;
}

div {
  all: unset;
  width: 100%;
  height: 10px;
  position: fixed;
  top: 0;
  left: 0;
  background-position: top left;
}

button {
  margin: 100px auto;
  color: #6a7a7a;
  cursor: pointer;
  background: #f8f8f8;
  padding: 0.5rem 1rem;
  border: 1px solid #d4dbdb;
  border-radius: 5px;
  outline: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  max-width: 200px;
  font: 600 1rem system-ui;
  letter-spacing: 0.025rem;
}
button:focus {
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.5);
}
</style>

</head>
<body translate="no">
<div></div>
<button type="button">点击刷新页面</button>

<script>
const COLORS = ['#ea4235', '#fbbc03', '#33a853', '#4185f4'];
const DURATION = 500;

const $btn = document.querySelector('button');
const $bar = document.querySelector('div');
const { width } = $bar.getBoundingClientRect();

const animateProgressBar = animate.bind(null, progressCallback);

$btn.addEventListener('click', animateProgressBar, false);
animateProgressBar();

function animate(progressCallback) {
  let startTime = 0;
  let timeElapsed = 0;
  let progress = 0;
  let id = null;

  function _animate(timestamp) {
    if (!sta.........完整代码请登录后点击上方下载按钮下载查看