This may result in LCP times increasing, if a low-content background was being painted very early, or if a low-content placeholder was being used to reserve space for a more contenful image which loaded later.
Death letter to LQIP? 🙏
Watch Out for Layout Shifts with ‘ch’ Units
In our case, we were using ch units to define our page layout. This meant that our post content was equal to 50ch units (or the width of fifty…
Do you know good tutorials and/or examples about dealing with responsive images that are fluid horizontaly, but with a fixed height?
Using object-fit: cover; in the CSS is easy, but how can we prevent loading many pixels that will be hidden, without using too many <source> in a <picture>?
Limiting the image density on mobile devices drasticaly improves performance, with no visual loss, so we did it!
I still wish it was much easier than dealing with <picture> and x descriptors for fluid images… 😞
With a <img maxdensity="2.5" …> attribute for example!
If you agree, comment:
https://github.com/whatwg/html/issues/4421
I love #SpeedCurve's simple and efficient Core Web Vitals Real User Monitoring, especially when everything is green! 🥳
This is a real e-commerce site, with many real users everyday. After a few months of performance optimisation.
On Container Queries, Responsive Images, and JPEG-XL
It is natural to think that the problem with images in container queries is a mere oversight. We used to only have media queries to design with. Now…
Jason Grigsby