对于线性渐变中的多个色标，可以尝试运行以下代码：
<!DOCTYPE html>
<html>
<head>
<style>
#demo {
height: 100px;
background: linear-gradient(blue, orange, yellow, gray);
}
</style>
</head>
<body>
<h2>Linear Gradient</h2>
<div id = "demo">Mutiple Color Stops</div><br>
</body>
</html>