Category: 02. CSS

The background-attachment property is used to set whether the background image is fixed or it scrolls with the rest of the page. Example for a fixed background-image: body {   background-image: url(‘url_of_image’);   background-repeat: no-repeat;   background-attachment: fixed; }

The background-repeat property is used to control the image. Example: h3 { background-repeat: none;  }

The different media types allowed by CSS are: 

Multiple elements can be targeted by separating with a comma: h2, h3 {color: red;}

With CSS sprites, loading multiple images is not an issue. 

This is one of the most frequently asked CSS interview questions. Z-index is used to specify the stack order of elements that overlap each other. Its default value is zero and can take both negative and positive values. A higher z-index value is stacked above the lower index element. It takes the following values- auto,…

Class is a way of using HTML elements for styling. They are not unique and have multiple elements. Whereas ID is unique and it can be assigned to a single element. 

CSS was developed to define the visual appearances of websites. It allows developers to separate the structure and content of a website that was not possible before. 

RGB represents colors in CSS. The three streams are namely Red, Green, and Blue. The intensity of colors is represented using numbers 0 to 256. This allows CSS to have a spectrum of visible colors.