How long does this usually take?

About 10 minutes on most CMS and code stacks when you already have access to edit the page.

Start with: Add width and height that match the image’s display box. Then use the platform picker on this page for placement notes.

Set image width and height

About 10 minLast updated Aug 25, 2026

Width and height (or CSS aspect-ratio) stop layout shift while images load. Follow the steps below on your stack, then re-check the live URL.

Width and height (or CSS aspect-ratio) stop layout shift while images load.

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Your stack

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Time	~10 min
Category	Performance
Steps	2
Stacks	WordPress, Shopify, Webflow, Next.js, HTML, more

Add alt="…" on each <img>, plus width and height when you know them.

Snippet

<img src="/photo.jpg" alt="Description" width="800" height="600">

What does “Set image width and height” fix?: Width and height (or CSS aspect-ratio) stop layout shift while images load.
How long does this usually take?: About 10 minutes on most CMS and code stacks when you already have access to edit the page.
Where do I start?: Start with: Add width and height that match the image’s display box. Then use the platform picker on this page for placement notes.