Alex Pretti Shooting, DHS Funding Vote, Icy Weather – NPR
Here’s a breakdown of the information contained in the provided HTML code snippet, focusing on the image details:
What it is:
This code defines two <img> tags, both displaying the same image of gladys West. It’s a responsive image setup,meaning different image sizes are provided to be used depending on the screen size of the device viewing the page.
Key Information:
* Image Source: The original image is located at: http://npr-brightspot.s3.amazonaws.com/b2/c7/e738ceba47d59f9ce4a2bb580878/gps-gladys-west-photo.jpg
* Image Alt Text: The alt attribute of the second image is “Gladys West whent fro”. (It appears to be incomplete.)
* Responsive Images: The first <img> tag uses the srcset attribute to provide multiple image sizes:
* 600w
* 800w
* 900w
* 1200w
* 1600w
* 1800w
* Image Processing: The images are processed by dims3,a service likely used by NPR (National public Radio) for image resizing adn optimization. The parameters used in the urls include:
* strip=false: Indicates that metadata stripping is disabled.
* crop=1257x707+283+172: Defines the cropping region of the original image. (Width x height + X offset + Y offset)
* resize/{width}: specifies the desired width of the image.
* quality/{quality}: Sets the JPEG quality level (85 or 50).
* format/jpeg: Specifies the image format as JPEG.
* data-template Attribute: Both images have a data-template attribute.This is a URL template that can be used by JavaScript to dynamically generate image URLs with different widths, qualities, and formats.
* sizes Attribute: The first image uses the sizes attribute to tell the browser how to choose the best image from the srcset.
* (min-width: 1025px) 650px: If the screen width is 1025 pixels or more, use an image that’s 650 pixels wide.
* calc(100vw - 30px): Or else, use an image that’s 100% of the viewport width minus 30 pixels.
In summary:
This code snippet is a well-structured implementation of responsive images, designed to deliver the optimal image size and quality to different devices, while using a content delivery network (CDN) and image processing service for efficient delivery.