效果图：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
html {
height: 200%;
/*为了突出滚动条*/
}
body {
scrollbar-face-color: red;
/*滚动条颜色*/
scrollbar-shadow-color: blue;
/*滚动条的边框*/
scrollbar-track-color: pink;
/*浏览器滚动条背景色*/
scrollbar-arrow-color: cyan;
/*滚动条向上向下指示箭头颜色*/
}
</style>
</head>
<body>
</body>
</html>