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Were there problems with Cumulative Layout Shift with dynamically changing list element heights? How can this be fixed?

sobes.tech AI

Answer from AI

Yes, issues with Cumulative Layout Shift (CLS) when list items have dynamic heights are common, especially when content loads asynchronously or sizes are unknown in advance.

To minimize CLS:

  • Set fixed or minimum sizes (width and height) for elements via CSS so the browser can reserve space.
  • Use placeholders or skeletons for loading content to avoid abrupt shifts.
  • If height depends on content, pre-calculate or store sizes and apply them during rendering.
  • For images, always specify width and height attributes or use CSS aspect-ratio.

Example CSS for reserving space:

.list-item {
  min-height: 100px; /* fixed minimum height */
}

This way, the browser allocates space for the element, preventing shifts during content load.

Were there problems with Cumulative Layout Shift with… - sobes.tech