CSS interview questions

CSS quiz questions

  • 1.

    How can CSS be cascaded to mix with user’s personal sheet?

    Answer:

    Properties can be a set in recommended places and the document modified for CSS to mix with user’s   personal sheet.

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  • 2.

    What is at-rule?

    Answer:

    Rule, which is applicable in the entire sheet and not partly, is known as at-rule. It is preceded by @ followed by A-Z, a-z or 0-9.

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  • 3.

    Are quotes mandatory in URL’s?

    Answer:

    Quotes are optional in URL’s, and it can be single or double.

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  • 4.

    What is Alternate Style Sheet?

    Answer:

    Alternate Style Sheets allows the user to select the style in which the page is displayed using the view>page style menu. Through Alternate Style Sheet, user can see a multiple version of the page on their needs and preferences.

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  • 5.

    Define property?

    Answer:

    A style, that helps in influencing CSS. E.g. FONT. They have corresponding values or properties within them, like FONT has different style like bold, italic etc.

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  • 6.

    Define Attribute Selector ?

    Answer:

    It is defined by a set of elements, value and its parts.

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  • 7.

    How comments can be added in CSS?

    Answer:

    The comments in CSS can be added with /* and */.

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  • 8.

    What is Inline style?

    Answer:

    The Inline style in a CSS is used to add up styling to individual HTML elements.

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  • 9.

    Which among the following is more precedent: CSS properties or HTML procedures?

    Answer:

    CSS is more precedent over HTML procedures. Browsers, which do not have CSS support, display HTML attributes.

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  • 10.

    Why is @import only at the top?

    Answer:

    @import is preferred only at the top, to avoid any overriding rules. Generally, ranking order is followed in most programming languages such as Java, Modula, etc. In C, the # is a prominent example of a @import being at the top.

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  • 11.

    How can the gap under the image be removed?

    Answer:

    As images being inline elements are treated same as texts, so there is a gap left, which can be   removed by:

    CSS

    img { display: block ; }
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  • 12.

    How can backward compatibility be designed in CSS?

    Answer:

    HTML sheet methods is collaborated with CSS and used accordingly.

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  • 13.

    What is progressive enhancement?

    Answer:

    It’s an alternative to graceful degradation, which concentrates on the matter of the web. The functionality is same, but it provides an extra edge to users having the latest bandwidth. It has been into prominent use recently with mobile internet connections expanding their base.

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  • 14.

    What is graceful degradation?

    Answer:

    In case the component fails, it will continue to work properly in the presence of a graceful degradation. The latest browser application is used when a webpage is designed. As it is not available to everyone, there is a basic functionality, which enables its use to a wider audience. In case the image is unavailable for viewing, text is shown with the alt tag.

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  • 15.

    How does Z index function?

    Answer:

    Overlapping may occur while using CSS for positioning HTML elements. Z index helps in specifying the overlapping element. It is a number which can be positive or negative, the default value being zero.

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  • 16.

    Define float property of CSS?

    Answer:

    By float property, the image can be moved to the right or the left along with the text to be wrapped around it. Elements before this property is applied do not change their properties.

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  • 17.

    How can the dimension be defined of an element ?

    Answer:

    Dimension properties can be defined by:

    • Height
    • Max-height
    • Max-width
    • Min-height
    • Min-width
    • Width
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  • 18.

    Compare Grouping and Nesting in CSS ?

    Answer:

    Grouping:  Selectors can be grouped having the same values of property and the code be reduced.
    E.g:

    h1 {
     
    color: blue;
     
    }
     
    h2 {
     
    color: blue;
     
    }
     
    p {
     
    color: blue;
     
    }

    It can be seen from the code that every element shares the same property. Rewriting can be avoided by writing each selector separated by a comma.

    Nesting: Specifying a selector within a selector is called nesting.

    P
     
    {
     
    color: red;
     
    text-align: left;
     
    }
     
    .marked
     
    {
     
    background-color: blue;
     
    }
     
    .marked p
     
    {
     
    color: green;
     
    }

     

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  • 19.

    Define Image sprites with context to CSS ?

    Answer:

    When a set of images is collaborated into one image, it is known as ‘Image Sprites’. As the loading every image on a webpage consumes time, using image sprites lessens the time taken and gives information quickly.

    CSS coding:

    img.add { width: 60px; height: 55px; background: url (image.god) 0 0; }

    In this case, only the part needed is used. The user can save substantial margin and time through this.

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  • 20.

    Compare RGB values with Hexadecimal color codes ?

    Answer:

    A color can be specified in two ways:

    • A color is represented by 6 characters i.e. hexadecimal color coding. It is a combination of numbers and letters and is preceded by #.       e.g.: g {color: #00cjfi}
    • A color is represented by a mixture of red, green and blue. The value of a color can also be specified. e.g.: rgb(r,g,b): In this type the values can be in between the integers 0 and 255. rgb(r%,g%,b%):  red, green and blue percentage is shown.
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