Explicitly setting the width and height in the HTML is considered a best practice for modern web performance:
to understand the content of the image for SEO purposes. <img width="500" height="287" src="https://crac...
: Modern browsers use these attributes to calculate the image's aspect ratio, ensuring it scales correctly even if responsive CSS (like width: 100%; height: auto; ) is applied later. Missing Recommended Attribute Explicitly setting the width and height in the
: By defining the size upfront, the browser can reserve the correct amount of space for the image before it even finished downloading. This prevents the page content from "jumping" around once the image appears, which improves the Cumulative Layout Shift (CLS) score. This prevents the page content from "jumping" around
: These attributes specify the image's dimensions in pixels (though the "px" unit is omitted in the HTML attribute itself). Width : 500 pixels. Height : 287 pixels. Importance of Defining Dimensions
While your snippet contains the dimensions, it is missing the attribute. This is another required attribute for standard-compliant HTML. It provides a text description of the image for: Users with visual impairments who use screen readers . Instances where the image fails to load .