CSS Images – CSS

title: CSS Images

CSS Images

This helps in adding an image to a website. CSS can handle images like JPG, PNG or other raster format. There are two types images: plain images which are sometimes referenced with a url, and dynamically generated images which are generated by some element.

Code Sample

<img src="picture.jpg" alt="Picture" width="100" height="100">

  • src: It consists the value of the path to the required image.
  • alt: This is a text description of the image and is useful if the image cannot be viewed by a visitor. It also allows the image on your page to rank in image search results for search engines such as Google.
  • width: This specifies a width for the image(can be percent or px or auto).
  • height: This specifies a height for the image(can be percent or px or auto).

CSS Defaults

The img element will be rendered by default in most browsers to be displayed as an inline-block display type unless specified otherwise.

img { display: inline-block; }

More Information:

It is advised to change any one parameter, either height or width, to get a proportionate image. Changing both dimensions results in forced scaling and is not advisable.

Example: Both of these will result in a proportionate image

<img src="picture.jpg" alt="Picture" width="100"> // or <img src="picture.jpg" alt="Picture" height="100">






Image Sprites

An image sprite is a collection of images put into a single image.
A web page with many images can take a long time to load and generates multiple server requests.
Using image sprites will reduce the number of server requests and save bandwidth.

#home { width: 46px; height: 44px; background: url(img_navsprites.gif) 0 0; }

More Info:

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