Science Knowings: HTML Course For Social Media

HTML Images

HTML Images: Beyond Basic

Previously, we explored HTML links and copywriting skills. Today, let's dive into the world of HTML images, a crucial aspect of web design.

Attributes of HTML Images

Must-Know Attributes for HTML Images

Attributes enhance the functionality and appearance of images. Let's explore the commonly used ones:

src Attribute


The src attribute is the heart of an HTML image. It specifies the path to the image file, telling the browser where to find it.

alt Attribute - SEO

alt="Image Description"

The alt attribute provides an alternative text description of the image. It helps with accessibility (for screen readers) and search engine optimization (SEO).

title Attribute

title="Image Title"

The title attribute offers additional information about the image when users hover over it. It's useful for providing more context or image credits.

height and width Attributes

height="100" width="150"

These attributes specify the height and width of the image in pixels. Defining these dimensions helps the browser allocate space and avoid broken layouts.

border Attribute


The border attribute adds a border around the image. It can help separate and highlight images on a web page.

Using CSS for Styling Images

CSS, the styling language of the web, offers immense flexibility in customizing images. You can change their size, position, and even add effects like drop shadows and rounded corners.

Background Images - Lesson from CSS

CSS allows you to set background images for elements. This technique opens up possibilities for creating visually appealing designs and adding depth to web pages.

Responsive Images and the sizes Attribute

sizes="(max-width: 600px) 100vw, 1024px"

With responsive images, you can deliver different image sizes based on the screen size. The sizes attribute helps optimize image loading for various devices.

Image Optimization Techniques for Web Performance

  • Compressing images without losing quality
  • Choosing the right image format (JPG, PNG, GIF, SVG)
  • Using a CDN to deliver images faster
  • Common Image Formats: JPG, PNG, GIF, SVG

    FormatUse Case
    PNGGraphics with transparency
    SVGScalable vector graphics

    HTML Picture Element

    <picture> <source srcset="image.jpg" media="(max-width: 600px)" /> <source srcset="image-large.jpg" media="(min-width: 601px)" /> <img src="image.jpg" alt="Image Description" /> </picture>

    The <picture> element allows you to specify multiple image sources with different sizes and media queries. It's an advanced technique for delivering optimal images for various devices and screen resolutions.

    Accessibility Considerations for Images

  • Providing alternative text for images (alt attribute)
  • Using descriptive file names
  • Ensuring images are keyboard accessible
  • Next Topic: HTML Lists

    In our next session, we'll delve into the world of HTML lists. Lists are a powerful way to organize and present information on web pages, and we'll explore their types and applications. Don't miss it!