CSS Selectors Quiz

Questions and Answers

Which selector targets all the elements on the webpage?

What is the purpose of the Descendant Selector (' ') in CSS?

Targets elements based on their relationships in the HTML structure.

How can a developer combine multiple identifiers or types into one single CSS rule?

Using Grouping Selectors

What does Attribute presence selectors target in CSS?

Elements with a specific attribute, regardless of its value Signup and view all the answers

Which selector is used to target the first line of a block of text?

::first-line Signup and view all the answers

In CSS, what does a:hover target?

Elements when hovered over Signup and view all the answers

What is the purpose of the pseudo-element ::after in CSS?

To create a pseudo-element after the element Signup and view all the answers

When does an element enter the :active state in CSS?

When it has been clicked on Signup and view all the answers

How does the inherit keyword work in CSS properties?

It sets the property value to be the same as its parent element Signup and view all the answers

What happens when you add !important to a CSS rule?

The rule becomes more important than any other rule Signup and view all the answers

How can you import another CSS file in CSS?

@import Signup and view all the answers

Where should @import directives be placed in a CSS file?

Before any other CSS in the file Signup and view all the answers

What is the main purpose of Bootstrap?

To build responsive websites and web applications Signup and view all the answers

Which of the following is NOT a feature of Bootstrap?

Integration with back-end databases Signup and view all the answers

What does Responsive Web Design aim to achieve?

Adapting website appearance for all devices Signup and view all the answers

Study Notes

CSS Selectors

The universal selector * targets all elements on a webpage.
The Descendant Selector ' ' is used to target elements that are descendants of another element.

Combining Identifiers

A developer can combine multiple identifiers or types into one single CSS rule using a comma-separated list.

Attribute Presence Selectors

Attribute presence selectors ([attr]) target elements that have a specific attribute, regardless of its value.

Text Styling

The ::first-line pseudo-element targets the first line of a block of text.

Hover Effects

The :hover pseudo-class targets an element when it is hovered over.

Pseudo-elements

The ::after pseudo-element is used to add content after an element.

Interactive States

An element enters the :active state when it is being activated by the user, such as when a button is clicked.

Inheritance

The inherit keyword sets a property to its parent's value.

Overriding Styles

Adding !important to a CSS rule overrides other styles with a higher specificity.

Importing Stylesheets

Another CSS file can be imported using the @import directive.
@import directives should be placed at the top of a CSS file.

Frameworks

Bootstrap

The main purpose of Bootstrap is to provide a responsive and mobile-first UI framework for creating web applications.
Bootstrap does not have a built-in feature for server-side rendering.