Note from 14 October 2022
width and height attributes on <img> help prevent layout shifts (CLS). Values should be unitless integers.
But #Lighthouse sees 100% as 100, thanks parseInt()…
Do you think it should be improved?
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Apparently, an image whose part above the fold is indeed the largest, but of which only a small part can be seen, can be considered an LCP element, even if another image has a larger part visible... 😭
You can see this for my photography site in this WebPageTest result:
https://www.webpagetest.org/vitals.php?test=230606_BiDcN4_4NJ&run=3&cached=0#lcp
Karolina Szczur