A guide to image overlays in CSS

Overlays, which add visual effects over content to enhance design, readability, or interactivity, are commonly used in web development, particularly for image enhancements within CSS. This guide explores the basics of applying image overlays using CSS, highlighting techniques such as using pseudo-elements like ::before, additional <div> wrappers, and CSS properties like linear-gradient(). It also delves into creating interactive effects with hover animations and layering images for dynamic presentations, commonly seen in e-commerce. The use of overlays with background images is discussed, demonstrating how they can enhance hero sections and banners. The guide emphasizes the importance of z-index for controlling stacking order to ensure text remains visible over overlays. The document encourages experimenting with colors, opacities, and animations to achieve desired design effects and concludes by promoting LogRocket for monitoring client-side performance in production environments.