![]() ![]() You can also add color filters or backgrounds behind text to improve readability (as described above) or to spruce up visuals. Now, in a situation where we want the text to appear on top of the image, we will alter the default positioning of the text element and its container by overriding their normal document flow using the CSS position property like so. For instance, the element in the above code will display before the heading text. Naturally, every element is a box laid out in the order in which they appear in the source code. Position absolute place this heading on top of the image The following HTML has an image and some heading text, both in a container li element: When working with regular elements, this layout feature is handy for placing a box element or another element on top of the image as an overlay. Techniques for creating overlays on images involve understanding CSS layout features like relative and absolute positioning. Let’s take a look now - you can also jump ahead to the comparison table for the various techniques we’ll cover in this tutorial. There are several approaches and transition effects that you can use to create a UI/UX-friendly image overlay using HTML and CSS. For example, when displaying some preview images for a large photo gallery, the last visible image of the gallery will often have an overlay displaying a photo count that encourages the user to view the remaining photos. Image overlays are also extensively used in popular social media platforms. In modern web app development, we often implement image overlays in: We usually create overlays with CSS behind text, icons, or images that get rendered on top of an image or a generated background like a gradient fill. ![]() Practical use cases for image overlays in modern apps Also, I’ll explain how to create better responsive overlays with media queries and advanced overlay groups with CSS grid. In this guide, I will show you how to apply overlays nicely on both background images and regular elements in CSS with various mouseover effects and animations. Their purpose could be for aesthetics or to improve text readability, especially for people with impaired vision. Overlays are effects used to create an additional layer on top of images. Comparing image overlay design techniquesĮditor’s note: This article was updated by Shalitha Suranga on 9 January 2024 to discuss practical use cases for CSS image overlays, add examples of image overlays using the CSS grid layout feature, demonstrate how to make image overlays more responsive and accessible, add a comparison table for the various strategies shown in this tutorial, and more.Creating multiple image overlays with CSS grid.Using the linear-gradient() CSS function.Using the background-blend-mode property.Using a pseudo-element to control background image opacity. ![]() Background image with a simple text overlay using CSS.Image over image displayed on hover with a zoom effect.Image overlay displaying icon on hover with a zoom effect.Image overlay displaying text on hover with a slide effect.Image overlay displaying text on hover with a zoom effect.Displaying an image overlay effect on hover with CSS.Translucent overlay covering the entire image. ![]()
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