Can you lazy load a background image?
While tags are the most common way of using images on web pages, images can also be invoked via the CSS background-image property (and other properties). Browser-level lazy-loading does not apply to CSS background images, so you need to consider other methods if you have background images to lazy-load.
Can you preload a background image?
Preload background image Whether you’re using background image or IMG tag if the image is in the above fold, preload that image. Preloading tells the browser to download that image on high priority.
Can you lazy load a div?
js to lazy load images or divs that have an “appear” class. When applied to a div, appearlazy will search for elements within it with the right data-attribute or if none are found, on the div itself. Images can also be lazy loaded on a simple timeout, using the data-delay attribute.
How do I preload a background image in CSS?
Load the image on the element’s regular state, only shift it away with background position. Then move the background position to display it on hover. If the element in question already has a background-image applied and you need to change that image, the above won’t work.
How can I make a lazy image responsive?
Here is a summary:
- Use vanilla-lazyload to load your lazy images.
- Don’t load all the images lazily, just the ones below the fold.
- Use the img for simple responsive images.
- Use the picture tag to. change your images width/height ratio at specific media queries.
- Don’t use any polyfill if not strictly required.
How can I make my background image load faster?
Making Background Images Load Faster
- Convert the background image to the JPG format and compress it to reduce its size.
- Use tiling to repeat a small image in all directions rather than using a background consisting of a single large image.
- Use a solid color instead of an image for the page’s background.
Should you preload images?
There is no need to preload images. I can’t understand why 99% people thinks, that hover effects have to use 2 images. There is no such need, and using 2 images makes it look bad. The only good solution I know is to use CSS for A elements (or easy JS for all other buttons).
Is Lazy Load good for SEO?
Lazy loading images improves the user experience by saving bandwidth for important content first. Some reject the technique for SEO considerations. But properly lazy loading your images does not prevent them from being indexed. Images need to be optimized, adapted to its rendering area, and only loaded if required.
What is lazy loading advantages and disadvantages of the same?
Overview of the advantages and disadvantages of lazy loading in a table
| Advantages | Disadvantages |
|---|---|
| Improved performance | User experience may be affected. For example, backtracking may not be possible if the page structure is not optimal. |
| Less traffic load for the host | Additional code when integrating with JavaScript |
Can you preload CSS?
Preloading CSS files # Waiting for JavaScript to execute before loading non-critical CSS can cause delays in rendering when users scroll, so it’s a good idea to use to initiate the download sooner.
How do I make a background-image lazy in WordPress?
5.1. 0 – 11.11. 2019
- Lazy loading of background images.
- Lazy loading of videos with autoplay.
Does Srcset load all images?
Each image in srcset can be taken. So if you want to control, what is used or not used, you need to use the picture element.
How to use lazy to load background images?
Example: Load Background Images. By default Lazy will use tags to load the src attribute. But there is also a way now to use Lazy with other html tags and load the image by background-image CSS attribute. Just use Lazy the way you would do on normal image tags.
How to lazy load images in Internet Explorer?
As indicated earlier, if you need Internet Explorer support for lazy-loading of background images, you will need to polyfill the Intersection Observer code, due to lack of support in that browser. The following libraries can be used to lazy-load images. lazysizes is a full-featured lazy loading library that lazy-loads images and iframes.
How to use lazy to load SRC tags?
By default Lazy will use tags to load the src attribute. But there is also a way now to use Lazy with other html tags and load the image by background-image CSS attribute. Just use Lazy the way you would do on normal image tags.
What can lazysizes be used for in JS?
LazySizes can be extended to load nearly everything lazily. The ls.unveilhooks.js plugin can be used to lazy load scripts, background images, and videos. Simply add a data-script to your widget and you are done: