Try this code:
<!DOCTYPE html>
<html>
<head>
<title>CSS Colors</title>
<style>
#h1{
color: pink;
}
#h2{
border: 2px solid purple;
}
#h3{
color: white;
background-color: orange;
}
</style>
</head>
<body>
<h1 id="h1">Studytonight</h1>
<h1 id="h2">Studytonight</h1>
<h1 id="h3">Studytonight</h1>
</body>
</html>
