<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
body {
font-family: "Microsoft YaHei", serif;
}
body, dl, dd, p, h1, h2, h3, h4, h5, h6 {
margin: 0;
}
ol, ul, li {
margin: 0;
padding: 0;
list-style: none;
}
img {
border: none
}
#wrap p{
float: left;
margin: 3px;
width: 100px;
height: 30px;
line-height: 30px;
text-align: center;
font-size: 12px;
color: #fff;
font-weight: bolder;
}
</style>
</head>
<body>
<div id="wrap"></div>
<script>
(function () {
let oWrap = document.getElementById("wrap");
setInterval(function () {
let r = Math.floor(Math.random()*256);
let g = Math.floor(Math.random()*256);
let b = Math.floor(Math.random()*256);
oWrap.innerHTML += `<p style="background-color: rgb(${r},${g},${b})">RGB${r},${g},${b}</p>`
},500)
})();
</script>
</body>
</html>
Python3Turtle