彩虹雨(源码)html css+js(22行)

2022/3/1 9:51:41

编程Tag： 源码 html image background gradient 22 Linear 200px transparent

本文主要是介绍彩虹雨(源码)html css+js(22行)，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！

1.效果图

在这里插入图片描述
思路:首先搭建好一个 ‘< i >’ 的样式还用下落的动画
接着使用for循环创建多个并添加到body中

2.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Colorful Rain</title>
    <link rel="stylesheet" href="./index.css">
    
</head>
<body>
    <script src="./index.js"></script>
</body>
</html>

3css/scss scss编译后就是css 使用css即可

3.1scss

*{
    margin: 0;
    padding: 0;
}
body{
    background-color: #000;
    min-height: 100vh;
}
i{
    position: absolute;
    height: 200px;
    width: 4px;
    border-radius: 0 0 4px 4px;
    background-image: linear-gradient(transparent,#fff);
    animation: move 5s linear infinite;
}
i:nth-child(3n+1){
    background-image: linear-gradient(transparent,rgb(241, 15, 15));
}
i:nth-child(3n+2){
    background-image: linear-gradient(transparent,rgb(14, 236, 218));
}
i:nth-child(3n+3){
    background-image: linear-gradient(transparent,rgb(36, 12, 248));
}
@keyframes move {
    0%{
        transform: translateY(-200px);
    }
    100%{
        transform: translateY(calc(100vh + 200px));
    }
}

3.2css

{
margin: 0;
padding: 0;
}
body {
background-color: #000;
min-height: 100vh;
}
i {
position: absolute;
height: 200px;
width: 4px;
border-radius: 0 0 4px 4px;
background-image: linear-gradient(transparent, #fff);
-webkit-animation: move 5s linear infinite;
animation: move 5s linear infinite;
}
i:nth-child(3n + 1) {
background-image: linear-gradient(transparent, #f10f0f);
}
i:nth-child(3n + 2) {
background-image: linear-gradient(transparent, #0eecda);
}
i:nth-child(3n + 3) {
background-image: linear-gradient(transparent, #240cf8);
}
@-webkit-keyframes move {
0% {
transform: translateY(-200px);
}
100% {
transform: translateY(calc(100vh + 200px));
}
}
@keyframes move {
0% {
transform: translateY(-200px);
}
100% {
transform: translateY(calc(100vh + 200px));
}
}

4js

var count=100
var i=1
while (i<=count) {
    //创建 i
    var Ele=document.createElement("i")
    //i 的宽度
    var EleW=Math.random()*5
    //i的 left 屏幕距离
    // left 就是屏幕的宽度随便跑
    var wd=document.documentElement.clientWidth
    var EleLeft=Math.random()*(wd-EleW)+EleW
    //i 动画的随机时间1-5s
    var durTime=Math.random()*4+1
    //i 延迟时间
    var DelyTime=Math.random()*2
    //添加样式
    Ele.style.width=EleW+'px';
    Ele.style.left=EleLeft+'px';
    Ele.style.animationDuration=durTime+'s';
    Ele.style.animationDelay=DelyTime+'s'
    //插入页面
    document.body.append(Ele)
    i++
}

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