Is changing the background color of a PHP site to white a reliable solution to eliminate white background flashes, considering browser themes and preferences?

To eliminate white background flashes on a PHP site, changing the background color to white can be a reliable solution. This ensures that the background color remains consistent, even if the page content takes time to load. However, it's important to consider browser themes and preferences that may override the specified background color.

<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            background-color: white;
        }
    </style>
</head>
<body>
    <!-- Your PHP site content here -->
</body>
</html>