主页 / 网络编程 /

JS+CSS实现滚动数字时钟效果

网络编程 2021-07-04 17:33www.168986.cn编程入门
本篇文章教给大家用JS代码配合CSS样式来实现滚动时钟的动画效果，一起来学习下。

本篇内容我们用js配合css样式表来实现一个滚动时钟的动画效果，这个效果一般都是用在网页开场动画以及区域的时间显示中，非常好看，动画效果也很个性，我们先来看下运行后的效果

狼蚁网站SEO优化就是这个滚动时钟动画的全部代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://.w3./TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://.w3./1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>CSS3+JS滚动数字时钟代码-狼蚁SEO</title>
<style>
body{text-align: center;background-color: #0e141b;color: rgba(224, 230, 235, 0.89);font-family: 'Roboto Condensed', sans-serif;font-weight: 300;overflow: hidden;}
.column,.colon{display: inline-block;vertical-align: ;font-size: 86px;line-height: 86px;}
.column{-webkit-transition: -webkit-transform 300ms;transition: -webkit-transform 300ms;transition: transform 300ms;transition: transform 300ms, -webkit-transform 300ms;}
.colon{-webkit-transition: -webkit-transform 300ms;transition: -webkit-transform 300ms;transition: transform 300ms;transition: transform 300ms, -webkit-transform 300ms;-webkit-transform: translateY(calc(50vh - 43px));transform: translateY(calc(50vh - 43px));}
.colon:after{content: ':';}
.num{-webkit-transition: opacity 500ms, text-shadow 100ms;transition: opacity 500ms, text-shadow 100ms;opacity: 0.025;}
.num.visible{opacity: 1.0;text-shadow: 1px 1px 0px #336699;}
.num.close{opacity: 0.35;}
.num.far{opacity: 0.15;}
.num.distant{opacity: 0.1;}
</style>
</head>
<body>
<div class="column">
 <div class="num">0</div>
 <div class="num">1</div>
 <div class="num">2</div>
</div>
<div class="column">
 <div class="num">0</div>
 <div class="num">1</div>
 <div class="num">2</div>
 <div class="num">3</div>
 <div class="num">4</div>
 <div class="num">5</div>
 <div class="num">6</div>
 <div class="num">7</div>
 <div class="num">8</div>
 <div class="num">9</div>
</div>
<div class="colon"></div>
<div class="column">
 <div class="num">0</div>
 <div class="num">1</div>
 <div class="num">2</div>
 <div class="num">3</div>
 <div class="num">4</div>
 <div class="num">5</div>
</div>
<div class="column">
 <div class="num">0</div>
 <div class="num">1</div>
 <div class="num">2</div>
 <div class="num">3</div>
 <div class="num">4</div>
 <div class="num">5</div>
 <div class="num">6</div>
 <div class="num">7</div>
 <div class="num">8</div>
 <div class="num">9</div>
</div>
<div class="colon"></div>
<div class="column">
 <div class="num">0</div>
 <div class="num">1</div>
 <div class="num">2</div>
 <div class="num">3</div>
 <div class="num">4</div>
 <div class="num">5</div>
</div>
<div class="column">
 <div class="num">0</div>
 <div class="num">1</div>
 <div class="num">2</div>
 <div class="num">3</div>
 <div class="num">4</div>
 <div class="num">5</div>
 <div class="num">6</div>
 <div class="num">7</div>
 <div class="num">8</div>
 <div class="num">9</div>
</div>
<script>
'use strict';
var size = 86;
var columns = Array.from(document.getElementsByClassName('column'));
var d = undefined,
 c = undefined;
var classList = ['visible', 'close', 'far', 'far', 'distant', 'distant'];
var use24HourClock = true;
function padClock(p, n) {
	return p + ('0' + n).slice(-2);
}
function getClock() {
	d = new Date();
	return [use24HourClock ? d.getHours() : d.getHours() % 12 || 12, d.getMinutes(), d.getSeconds()].reduce(padClock, '');
}
function getClass(n, i2) {
	return classList.find(function (class_, classIndex) {
		return i2 - classIndex === n || i2 + classIndex === n;
	}) || '';
}

var loop = setInterval(function () {
	c = getClock();

	columns.forEach(function (ele, i) {
		var n = +c[i];
		var offset = -n  size;
		ele.style.transform = 'translateY(calc(50vh + ' + offset + 'px - ' + size / 2 + 'px))';
		Array.from(ele.children).forEach(function (ele2, i2) {
			ele2.className = 'num ' + getClass(n, i2);
		});
	});
}, 200 + Math.E  10);
</script>
</body>
</html>

注意其中最上面的是CSS样式内容，大家可以在其中进行调整颜色字体等

<style>
body{text-align: center;background-color: #0e141b;color: rgba(224, 230, 235, 0.89);font-family: 'Roboto Condensed', sans-serif;font-weight: 300;overflow: hidden;}
.column,.colon{display: inline-block;vertical-align: ;font-size: 86px;line-height: 86px;}
.column{-webkit-transition: -webkit-transform 300ms;transition: -webkit-transform 300ms;transition: transform 300ms;transition: transform 300ms, -webkit-transform 300ms;}
.colon{-webkit-transition: -webkit-transform 300ms;transition: -webkit-transform 300ms;transition: transform 300ms;transition: transform 300ms, -webkit-transform 300ms;-webkit-transform: translateY(calc(50vh - 43px));transform: translateY(calc(50vh - 43px));}
.colon:after{content: ':';}
.num{-webkit-transition: opacity 500ms, text-shadow 100ms;transition: opacity 500ms, text-shadow 100ms;opacity: 0.025;}
.num.visible{opacity: 1.0;text-shadow: 1px 1px 0px #336699;}
.num.close{opacity: 0.35;}
.num.far{opacity: 0.15;}
.num.distant{opacity: 0.1;}
</style>

JS代码主要就是控制动画的滚动效果，CSS用来控制数字的大小等内容。

本篇内容是狼蚁SEO的原创，网络推广网站推广转载请留网址，感谢你对狼蚁SEO的支持。

上一篇：JS实现图片居中悬浮效果 下一篇：Vue.js通用应用框架-Nuxt.js的上手教程

编程语言

Copyright © 2016-2025 www.168986.cn 狼蚁网络 版权所有 Power by