This is an HTML snippet containing an image tag with a lot of responsive image attributes. Let’s break it down:
Overall Structure:
* <div class="duet--article--dangerously-set-cms-markup xkp0cg2 xptnl12">: This is a container div, likely used for styling and layout within a larger article. the class names suggest it’s part of a content management system (CMS) setup.
* <a href="...">: This is a hyperlink. The href attribute is missing, so it’s not currently linking anywhere. It’s likely intended to link to the source of the image or a related article.
* <img ...>: this is the image tag itself. This is where all the vital information about the image is located.
* <figcaption class="duet--article--dangerously-set-cms-markup xkp0cg2 xptnl12">Mo: This is a caption for the image. It’s cut off (“Mo”), so the full caption is missing.
Image Tag Attributes (the important part):
* sizes="(max-width: 639px) 100vw, (max-width: 1023px) 50vw, 700px": This is the sizes attribute, crucial for responsive images.It tells the browser how much space the image will occupy at different screen sizes:
* (max-width: 639px) 100vw: If the screen width is 639px or less, the image should take up 100% of the viewport width (vw).
* (max-width: 1023px) 50vw: If the screen width is 1023px or less, the image should take up 50% of the viewport width.
* 700px: For screen widths greater than 1023px, the image should be displayed at a fixed width of 700 pixels.
* srcset="... (long list of URLs) ...": This is the srcset attribute. it provides a list of different image sources,each with a specific width. the browser will choose the most appropriate image based on the screen size and pixel density. Each entry in srcset is in the format: URL width. for example:
* https://platform.vox.com/wp-content/uploads/sites/2/2025/11/gettyimages-1242721070.jpg?quality=90&strip=all&crop=0%2C0%2C100%2C100&w=256 256w means there’s an image at that URL that’s 256 pixels wide.
* src="https://platform.vox.com/wp-content/uploads/sites/2/2025/11/gettyimages-1242721070.jpg?quality=90&strip=all&crop=0%2C0%2C100%2C100&w=2400": This is the src attribute. It specifies the default image to load if the browser doesn’t support srcset or if none of the srcset images are suitable. In this case, it’s loading the 2400px wide version.
* alt="ot;)": This is the alt attribute. It provides alternative text for the image, which
