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where should I put it, if I want to add an image, css or html?

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Short version: place images by purpose, not by preference. That captures the best of what , and said and aligns with ’s rule of thumb: images that carry meaning belong in the document markup so they remain semantic and accessible; purely decorative or layout-only images belong in CSS so they stay out of the content flow.

Practical guidance on semantics and accessibility: content images should have a concise, meaningful description (avoid phrases like "image of"); use a caption or a longer description for complex visuals; do not put content-critical images in CSS because screen readers, search engines and copy/paste will not see them. Decorative graphics should be added via CSS or implemented as decorative SVGs that are hidden from assistive tech.

Performance and modern considerations: serve images sized for the device (avoid sending a huge image and scaling it down in the browser), use modern compressed formats when possible, and provide appropriately scaled images for high-DPI screens. Reserve markup-level images for content, but use techniques that avoid layout shifts (declare intrinsic dimensions or use an aspect-ratio strategy) and defer offscreen resources to reduce initial load time.

Short implementation checklist that fills gaps from earlier replies:

  • Decide content vs decorative first (semantics drives placement).
  • For content: use semantic markup and provide a useful short description; add a caption or longer description for complex charts.
  • For decoration: use CSS or decorative SVGs so they are ignored by assistive tech.
  • Optimize files (resize, compress, modern formats), set intrinsic sizing to avoid CLS, and test on mobile and with a screen reader.

In most real sites the safe default is semantic markup for anything a user must understand; CSS is for visual flourishes only. This keeps accessibility, SEO and performance manageable.

Recommended Answers

All 6 Replies

Member Avatar for JorgeM

The easiest way to add an image is via HTML, using the <img/>element. However, you can assign a background image to certain elements.

I don't think there is a right or wrong.. What are you trying to accomplish?

Member Avatar for old_apache

i want to do the best practice to add an image

Member Avatar for oanahmed

to put an image(the best practice to do is), use "HTML" and use the "<img />" tag with "src" attribute.

Edited by oanahmed
Member Avatar for Troy III

There is no "best practice" to code images into a web page, there's only a correct syntax of doing it!
Which is the image tag: <img src="...">

A correct code/syntax is always the best practice.

Member Avatar for BMXDad

Generally, if its part of the page or menu structure then put it in the CSS, using the background-image property.

If its part of the content, then in the markup. That way you can make sure the Alt tag is filled out properly and an individual that's using an AT (Assistive Technology) device can understand what the image is about.

Edited by BMXDad
commented: I agree! +0
Member Avatar for old_apache

A correct code/syntax is always the best practice.

i don't think so

Generally, if its part of the page or menu structure then put it in the CSS, using the background-image property.

If its part of the content, then in the markup. That way you can make sure the Alt tag is filled out properly and an individual that's using an AT (Assistive Technology) device can understand what the image is about.

thanks, i think this helps

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