Use the text-shadow property to create white text with black shadow.
You can try to run the following code to implement the text-shadow property:
Example
<!DOCTYPE html>
<html>
<head>
<style>
h1 {
color: white;
text-shadow: 3px 3px 3px #000000;
}
</style>
</head>
<body>
<h1>Heading One</h1>
<p>Above heading has a text shadow effect.<p>
</body>
</html>