<!DOCTYPE>
<html>
<!--how internal css is embedded in a web page-->
<style>
h1
{
color:red; /* this attribute is applied on all h1 tag in this web page */
}
</style>
</head>
<body>
<h1>Heading with Red Color.</h1>
Hi i am not With red Color
<h1>I am also with red color.</h1>
</body>
</html>