js+css实现星球大战倒计时效果代码-html代码-BFW代码库

代码语言：html

代码描述：js+css实现星球大战倒计时效果代码

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>
@import url("https://fonts.googleapis.com/css2?family=Major+Mono+Display&display=swap");
body {
  background: whitesmoke;
  font-family: "Major Mono Display", monospace;
  font-size: 62.5%;
}

section {
  min-width: 500px;
}

.wrapper {
  color: whitesmoke;
  height: 500px;
  margin-top: 20px;
  position: relative;
}

.ui {
  margin: 20px auto;
  text-align: center;
  width: 160px;
}

input[type=checkbox] {
  vertical-align: middle;
}

.centered {
  position: absolute;
  text-align: center;
  width: 100%;
}

.timeOutput {
  font-size: 1.2rem;
  font-weight: bold;
  line-height: 1.8rem;
  top: 50%;
  transform: translateY(-50%);
}
.timeOutput .small {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: normal;
  line-height: 0.7rem;
  margin-bottom: 5px;
  max-width: 143px;
}
</style>


</head>

<body >
  <section class="wrapper">
	<div class="canvas centered"></div>
	<div class="timeOutput centered"></div>
</section>
<section class="ui">
	<label>Animated edge:<input id="toggle" type="checkbox" checked></label>
</section>

  
      <script >
// Respect user System animation preference
const mediaQuery = window.matchMedia('(prefers-reduced-motion: reduce)');
let userAllowsAnimation = !mediaQuery || mediaQuery.matches ? false : true;
mediaQuery.addEventListener('change', () => {
  userAllowsAnimation = mediaQuery.matches ? false : true;
  setAnimationOption();
});
const toggle = document.querySelector('#toggle');
const setAnimationOption = () => {
  toggle.disabled = !userAllowsAnimation;
};
setAnimationOption();

// We are waiting for Star Wars "Visions" to arrive!!
let targetDate = 'September 22, 2021 09:00:00 GMT';
let targetAquiredMessage = 'acquired';

const output = document.querySelector('.timeOutput');
const canvasWrapper = document.querySelector('.canvas');
const mPI = Math.PI;
const mfloor = Math.floor;
const mrandom = Math.random;
const mcos = Math.cos;
const msin = Math.sin;
const height = width = 500;
const midX = midY = height * .5;
let canvas, ctx;
let lineWeights,arcs,colours,radius,centerRadius = 80;
const bgCol = 'whitesmoke';
let edgeCol = '#a00';
let achievedCol = '#3b3';
const shellSets = [
{ lineWeights: [1], colours: ['#888'], min: [10], variance: [10], radius: 250 },
{ lineWeights: [3], colours: ['#aaa'], min: [10], variance: [10], radius: 249 },
{ lineWeights: [4], colours: ['#ddd'], min: [10], variance: [10], radius: 246 },
{ lineWeights: [1, 3], colours: ['#aaa', edgeCol], min: [10, 3], variance: [20, 30], radius: 247 },
{ lineWeights: [1, 3], colours: ['#ddd', edgeCol], min: [15], variance: [50, 10], radius: 245 },
{ lineWeights: [1, 8], colours: [bgCol, edgeCol], min: [10], variance: [20], radius: 242 },
{ lineWeights: [2, 8, 15, 8], colours: [edgeCol], min: [10, 8, 2], variance: [30, 8, 4], radius: 234 },
{ lineWeights: [1, 25], colours: [bgCol, edgeCol], min: [10, 3], variance: [30, 10], radius: 234 },
{ lineWeights: [1, 2], colours: [bgCol, edgeCol], min: [3], variance: [50], radius: 209 },
{ lineWeights: [1, 10], colours: [bgCol, edgeCol], min: [10, 3], variance: [30, 10], radius: 209 }];

const lineSets = [
{ aStart: 0, aEnd: 20, rInner: centerRadius + 2, rOuter: 229 },
{ aStart: 21, aEnd: 40, rInner: 150, rOuter: 229 },
{ aStart: 41, aEnd: 60, rInner: 150, rOuter: 229 },
{ aStart: 61, aEnd: 115, rInner: centerRadius + 2, rOuter: 229 },
{ aStart: 140, aEnd: 150, rInner: centerRadius + 2, rOuter: 229 },
{ aStart: 151, aEnd: 180, rInner: 150, rOuter: 229 },
{ aStart: 181, aEnd: 205, rInner: centerRadius + 2, rOuter: 229 },
{ aStart: 240, aEnd: 270, rInner: centerRadius + 2, rOuter: 229 },
{ aStart: 271, aEnd: 290, rInner: 150, rOuter: 229 },
{ aStart: 291, aEnd: 325, rInner: centerRadius + 2, rOuter: 229 },
{ aStart: 326, aEnd: 338, rInner: 150, rOuter: 229 },
{ aStart: 339, aEnd: 359, rInner: 150, rOuter: 229 },

// horizontal triplet
{ aStart: 21, aEnd: 35, rInner: 130, rOuter: 132 },
{ aStart: 21, aEnd: 35, rInner: 133, rOuter: 135 },
{ aStart: 21, aEnd: 35, rInner: 136, rOuter: 138 },
// vertical triplet
{ aStart: 43, aEnd: 43.5, rInner: 150, rOuter: 175 },
{ aStart: 44, aEnd: 44.5, rInner: 150, rOuter: 175 },
{ aStart: 45, aEnd: 45.5, rInner: 150, rOuter: 175 },
//
{ aStart: 142.5, aEnd: 143.5, rInner: 82, rOuter: 120 },
{ aStart: 144.5, aEnd: 145.5, rInner: 82, rOuter: 120 },
{ aStart: 146.5, aEnd: 147.5, rInner: 82, rOuter: 120 },
//
{ aStart: 170, aEnd: 180, rInner: 193, rOuter: 195 },
{ aStart: 170, aEnd: 180, rInner: 196, rOuter: 198 },
{ aStart: 170, aEnd: 180, rInner: 199, rOuter: 201 },
//
{ aStart: 181, aEnd: 191, rInner: 193, rOuter: 195 },
{ aStart: 181, aEnd: 191, rInner: 196, rOuter: 198 },
{ aStart: 181, aEnd: 191, rInner: 199, rOuter: 201 },
//
{ aStart: 243, aEnd: 243.5, rInner: 185, rOuter: 229 },
{ aStart: 244, aEnd: 244.5, rInner: 185, rOuter: 229 },
{ aStart: 245, aEnd: 245.5, rInner: 185, rOuter: 229 },
//
{ aStart: 320, aEnd: 320.5, rInn.........完整代码请登录后点击上方下载按钮下载查看