Absolute positioning in CSS allows you to position elements in HTML in a specific place on a website. Elements can be positioned using top, right, bottom and left properties using positive or negative CSS units such as px or em. Normally, HTML elements on a page are always positioned statically from top to bottom. (more…)

CSS sprites allow you to create a single large image containing smaller images in a grid and use the CSS background property to change the position of the visible area to the required image. They are a good way of reducing the amount of HTTP requests made for images on a website, therefore reducing the loading time. Sprites can be used for navigation icons and especially where many small icons need to be used. (more…)