标签:child info tran ash mat mic delay scree 路径
不需要多么高大上的编辑器,一个文本文档足够,首先在桌面新建一个文件夹,然后把素材图片放在文件夹,再新建一个文本文档。
先写入模板,对页面布局进行调整,代码如下:
<style> *{ margin: 0; padding: 0; list-style: none; } body{ background-color: #000; } span{ width: 30px; height: 30px; background: url("图片路径") no-repeat; position: absolute; background-size:100% 100%; animation: flash 1s alternate infinite; } @keyframes flash { 0%{opacity: 0;} 100%{opacity: 1;} } span:hover{ transform: scale(3, 3) rotate(180deg) !important; transition: all 1s; } </style>
这个时候基本雏形就有了。我们把大小调整为电脑屏幕一样大小
var screenW = document.documentElement.clientWidth; var screenH = document.documentElement.clientHeight;
然后产生随机,随机的跳动频率,随机的位置,随机的星星个数等
for(var i=0; i<150; i++){ var span = document.createElement(‘span‘); document.body.appendChild(span); var x = parseInt(Math.random() * screenW); var y = parseInt(Math.random() * screenH); span.style.left = x + ‘px‘; span.style.top = y + ‘px‘; var scale = Math.random() * 1.5; span.style.transform = ‘scale(‘+ scale + ‘, ‘ + scale + ‘)‘; var rate = Math.random() * 1.5; span.style.animationDelay = rate + ‘s‘;
这个时候差不多就结束了,可以看看效果图
下面附上完整代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> <style> *{ margin: 0; padding: 0; list-style: none; } body{ background-color: #000; } span{ width: 30px; height: 30px; background: url("图片路径") no-repeat; position: absolute; background-size:100% 100%; animation: flash 1s alternate infinite; } @keyframes flash { 0%{opacity: 0;} 100%{opacity: 1;} } span:hover{ transform: scale(3, 3) rotate(180deg) !important; transition: all 1s; } </style> </head> <body> <span></span> <script> window.onload = function () { // 屏幕的尺寸 var screenW = document.documentElement.clientWidth; var screenH = document.documentElement.clientHeight; // 2. 动态创建多个星星 for(var i=0; i<150; i++){ var span = document.createElement(‘span‘); document.body.appendChild(span); //位置随机 var x = parseInt(Math.random() * screenW); var y = parseInt(Math.random() * screenH); span.style.left = x + ‘px‘; span.style.top = y + ‘px‘; //大小随机 var scale = Math.random() * 1.5; span.style.transform = ‘scale(‘+ scale + ‘, ‘ + scale + ‘)‘; //频率随机 var rate = Math.random() * 1.5; span.style.animationDelay = rate + ‘s‘; } } </script> </body> </html>
标签:child info tran ash mat mic delay scree 路径
原文地址:https://www.cnblogs.com/pingfandezhuanji/p/12434582.html