How can CSS styles be used to improve the positioning and display of images within a PHP application?

To improve the positioning and display of images within a PHP application, CSS styles can be used to control the layout, size, and alignment of the images. By applying CSS rules to the HTML elements that contain the images, you can achieve a more visually appealing presentation. This can include setting the image size, adjusting margins and padding, and using positioning properties like float or flexbox to control the layout.

<!DOCTYPE html>
<html>
<head>
    <style>
        .image-container {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 300px;
        }
        .image-container img {
            max-width: 100%;
            max-height: 100%;
        }
    </style>
</head>
<body>
    <div class="image-container">
        <img src="image.jpg" alt="Image">
    </div>
</body>
</html>