Add the correct class to make the H1 element red.
<!DOCTYPE html>
<html>
<head>
<style>
.mystyle {color:red;}
</style>
</head>
<body>
<h1 @(15)>My Home Page</h1>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<style>
.mystyle {color:red;}
</style>
</head>
<body>
<h1 class="mystyle">My Home Page</h1>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<style>
.mystyle {color:red;}
</style>
</head>
<body>
<h1 class='mystyle'>My Home Page</h1>
</body>
</html>