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  • CSS & CSS3 MCQs PYQs with Explanations | Suraku Academy

Q: 1 Which CSS property can provide to add an effect when changing from one style to another, without using flash animations or JavaScript?

  1. Associations

  2. Transitions

  3. Transistor

  4. None of the above

[ Option B ]

The CSS transition property allows you to add smooth effects when changing from one style to another without using flash animations or JavaScript. Transitions enhance user experience by providing visually appealing animations with minimal effort and without complex scripting.

It provides control over the duration, timing function, and delay of the change, enabling smooth gradual changes, such as fading colors, resizing elements, or moving components when a user interacts with a page.

button {
  background-color: yellow;
  transition: background-color 1s ease;
}
button:hover {
  background-color: green;
}

In this example, when the user hovers over the button, the background color smoothly changes from yellow to green in 1 seconds.

Q: 2 Which of the following is NOT true about Cascading Style Sheets (CSS)?

  1. CSS can control the layout of multiple web pages

  2. CSS supports style formatting in HTML pages

  3. Style definitions can be saved in an external CSS file

  4. Only one CSS can be used in a HTML file

[ Option D ]

CSS (Cascading Style Sheets) is used to control the presentation and layout of HTML documents. It separates content (HTML) from design (CSS), making web pages easier to manage and maintain.

StatementTrue / FalseExplanation
CSS can control the layout of multiple web pages.TrueOne external CSS file can be linked to many HTML pages.
CSS supports style formatting in HTML pages.TrueCSS is specifically designed for styling HTML elements.
Style definitions can be saved in an external CSS file.TrueExternal CSS files (.css) are commonly used.
Only one CSS can be used in a HTML file.FalseMultiple CSS files can be linked in one HTML document.

CSS can be applied in three ways:
1. Inline CSS.
2. Internal CSS.
3. External CSS.
The term “Cascading” means:

  • Styles are applied based on priority rules.
  • Inline > Internal > External.

Q: 3 Which of the following is an advantage of using a separate CSS file in HTML?

  1. The content becomes easy to manage

  2. Easier to design sites for different devices like mobile

  3. CSS files are cached and decrease server load and network traffic

  4. All of the above

[ Option D ]

In web development, using a separate CSS (Cascading Style Sheets) file helps in maintaining better structure and efficiency. It separates the design (CSS) from the content (HTML), which makes the code cleaner and easier to manage.
A separate CSS file allows developers to modify styles in one place, making content management easier.
It also helps in creating responsive designs for different devices like mobiles and tablets. 
Additionally, CSS files are cached by the browser, which reduces server load and improves page loading speed.

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