Programming Code Center(PCC)
[CSS]

(PCC)::[How-to-Set-the-background-color-of-a-page]::[css]

File Name : index.html

<!DOCTYPE html>
<html>
<head>
<style>
body {
  background-color: lightblue;
}
</style>
</head>
<body>

<h1>Hello World!</h1>

<p>This page has a light blue background color!</p>

</body>
</html>

Output :

Hello World!

This page has a light blue background color!