Understanding src and srcset
The src attribute in an <img> tag defines the source of the image to be displayed in a browser. However, the srcset attribute allows the browser to select from a list of images based on the user's device, screen size, or resolution. By using srcset, developers can provide multiple versions of an image and optimize for performance across various devices.
Defining sizes
The sizes attribute works in conjunction with srcset to tell the browser how much space the image will take up in the layout. It specifies the image size for different viewport widths, which allows the browser to select the best image from the srcset list, ensuring that users systems use the most appropriate image for their screen, reducing load times.
Why Art Direction Matters
Art direction is essential in responsive design because it allows designers to present different versions of the same image depending on the context or screen size. For instance, an image might need to be cropped differently on mobile devices versus desktop screens to maintain clarity, focus, or meaning. This technique ensures that the most visually impactful version of an image is displayed, improving user experience.
Summary of the Documentation
Using srcset, and sizes allows a developer to create a responsive and great looking UI that ensures the images being loaded are loaded fast and have a good clarity for the user. This also makes the site easier to create and style for the developer.