HTML MASTER CLASS /// LEARN IMAGES /// OPTIMIZE FORMATS /// ACCESSIBLE WEB /// HTML MASTER CLASS /// LEARN IMAGES /// OPTIMIZE FORMATS /// ACCESSIBLE WEB /// HTML MASTER CLASS /// LEARN IMAGES /// OPTIMIZE FORMATS /// ACCESSIBLE WEB ///

HTML Image Formats

Learn how to embed visuals. Master the src attribute, select the right format (JPG, PNG, WebP), and ensure accessibility.

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Tutor:Images are added with the <img> tag. It is a void element, meaning it has no closing tag. The browser replaces this tag with the actual image content loaded from a server.

Skill Matrix

UNLOCK NODES BY MASTERING FORMATS.

Concept: Img Syntax

The <img> tag embeds images. It requires src and alt. It does not have a closing tag.

System Check

Which character is NOT found in a valid img tag?

< (Less than)/ (Slash in closing tag)= (Equals)" (Quotes)

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HTML Images & Formats

Pascual Vila

Frontend Instructor // Code Syllabus

A picture is worth a thousand words, but only if it loads quickly. Mastering the<img> tag means understanding attributes and file formats.

The Image Tag

The <img> tag is a void element. It essentially acts as a placeholder that the browser fills with content referenced by thesrc attribute.

Formats Explained

JPEG is the king of photography. It uses lossy compression to reduce file size for complex images.PNG is lossless and supports transparency, making it ideal for logos.WebP offers the best of both worlds with superior compression.

Accessibility

Never forget the alt attribute. It is not optional. It is the voice of your image for those who cannot see it, and it helps Google understand your content.

View Full Transcript+

This section contains the detailed breakdown of file extensions, compression algorithms (lossy vs lossless), and the syntax for responsive images using the picture element (advanced topic).

Image Glossary

src: Source. The attribute that tells the browser where to find the image file (URL or path).
alt: Alternative Text. A description of the image for screen readers or if the image fails to load.
loading='lazy': Defers loading of the image until it is close to the viewport to improve performance.
width & height: Attributes to specify the size of the image, preventing layout shifts during load.