Here’s a breakdown of the HTML snippet, focusing on the image and its responsive behavior:
Overall Structure
The code snippet represents an image within an article, designed to be responsive (adapting to different screen sizes). It uses the <picture> element, which is the modern way to handle responsive images.
Key Elements
* <picture>: This element allows you to provide multiple image sources based on media queries or browser support.
* <source>: Inside the <picture> element, <source> tags define different image sources and their associated conditions.
* data-srcset: This attribute specifies the urls of different image sizes. The numbers after the URLs (e.g., 280w, 320w, 460w) indicate the width of the image in pixels. The browser will choose the most appropriate image based on the screen size and pixel density.
* srcset: This attribute is used as a fallback for browsers that don’t support the <source> element. It also defines the image URLs and widths.
* <img> (inside <noscript>): This is a traditional <img> tag. It’s placed inside a <noscript> tag, meaning it will only be displayed if the browser doesn’t support JavaScript or if javascript is disabled.This provides a fallback for older browsers.
* <a>: The image is wrapped in an anchor tag (<a>), making it a clickable link.
* alt attribute: The alt attribute on the <img> tag provides alternative text for the image, which is significant for accessibility and SEO.
Responsive Image Strategy
The code implements a responsive image strategy by providing multiple versions of the image at different widths. The browser will:
- Check for
<source> support: If the browser supports the<source>element,it will evaluate themediaattributes (if any were present,which they aren’t in this case,so it just uses thesrcset). - Choose the best image: Based on the screen size, pixel density, and the
srcsetvalues, the browser will select the most appropriate image to download and display. This helps to reduce bandwidth usage and improve page load times, especially on mobile devices. - fallback to
<img>: If the browser doesn’t support<source>, it will fall back to the<img>tag inside the<noscript>tag.
Image URLs and Sizes
Here’s a list of the image URLs and their corresponding widths:
* https://mf.b37mrtl.ru/files/2025.10/xxs/68ea4ddf20302709f0788469.png – 280w
* https://mf.b37mrtl.ru/files/2025.10/xs/68ea4ddf20302709f0788469.png – 320w
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