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How does an element with position: sticky; behave when scrolling past its container?

  • It becomes transparent.
  • It disappears from the layout.
  • It remains fixed in its original position.
  • It scrolls with the container.
When an element has a 'position: sticky;' property and scrolls past its container, it sticks to the container until it reaches a specified offset, after which it scrolls along with the container. This behavior is often used for navigation bars.
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How does Autoprefixing aid in ensuring cross-browser compatibility?

  • Autoprefixing adds vendor-specific prefixes to CSS properties, ensuring compatibility with various browsers.
  • Autoprefixing automatically generates alternate versions of your styles for different browsers.
  • Autoprefixing replaces outdated CSS properties with modern equivalents.
  • It converts JavaScript code to CSS for browsers that do not support modern JavaScript.
Autoprefixing is the process of adding vendor-specific prefixes to CSS properties to ensure cross-browser compatibility. It automatically generates CSS rules with the necessary prefixes, like -webkit-, -moz-, or -ms-, making sure that your styles are correctly interpreted by different browsers. This helps avoid the need for writing separate CSS rules for each browser.
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What is the result when an element does not have a specific style defined but its parent does?

  • The browser applies default styles to the element.
  • The element inherits styles from a global stylesheet.
  • The element inherits the styles from its parent.
  • The element remains unstyled.
When an element does not have a specific style defined but its parent does, it will inherit the styles from its parent. This inheritance is a fundamental concept in CSS and helps maintain consistency in the appearance of web pages.
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You want to target all paragraphs that are immediately after an h2 element within the same container. Which CSS selector combination will you use?

  • h2 + p
  • h2 > p
  • h2 p
  • h2 ~ p
To target all paragraphs immediately after an h2 element within the same container, you would use the selector h2 + p. This selector selects any

element that is immediately preceded by an

element.

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You're optimizing a website for better scroll performance. Which CSS property would you use to hint to the browser about an element that will change frequently?

  • position: fixed;
  • transform: translate3d(0,0,0);
  • will-change
  • z-index
To optimize scroll performance, you can use the will-change property to hint to the browser that an element will change frequently. This allows the browser to prepare for the changes and allocate resources accordingly, improving scrolling performance. While using transform: translate3d(0,0,0); can also trigger hardware acceleration, it may not be as specific or efficient as will-change. z-index and position: fixed; are unrelated to hinting to the browser about frequent changes in an element.
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When an element's position is absolute and no ancestors are positioned, it will be positioned relative to the ________.

  • Body
  • Document
  • Nearest positioned ancestor
  • Viewport
When an element's position is set to absolute and no ancestors are positioned (with relative, absolute, or fixed positioning), it is positioned relative to the viewport, which is the browser window. This means it's positioned in relation to the visible area of the web page.
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How would you select list items that are the only child within their containing unordered list?

  • :lonely-child
  • :only-child
  • :single-child
  • :unique-child
To select list items that are the only child within their containing unordered list, you should use the :only-child pseudo-class. This targets elements that are the only child of their parent, ensuring that it's the sole element within the parent container.
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Media queries using the orientation feature can detect if the device is in ______ or ______ mode.

  • light, dark
  • mobile, desktop
  • portrait, landscape
  • vertical, horizontal
Media queries with the orientation feature are used to detect whether the device is in portrait or landscape mode. This is valuable in responsive web design as it allows you to adjust the layout and styling based on the device's orientation, ensuring a better user experience.
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What is the role of the calc() function in CSS?

  • The calc() function is used to calculate mathematical expressions in JavaScript.
  • The calc() function is used to calculate values for CSS properties by performing mathematical operations.
  • The calc() function is used to create animations in CSS.
  • The calc() function is used to define color calculations in CSS.
The calc() function in CSS allows you to perform mathematical operations to calculate values for CSS properties. It's useful for creating responsive layouts and defining dynamic values based on other property values. For example, you can use calc() to set the width of an element as a percentage of the parent container's width minus a fixed value.
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Which property in CSS is used to align text to the center?

  • align-text: center;
  • center-text: horizontal;
  • text-align: center;
  • text-center: horizontal;
To align text to the center in CSS, you can use the text-align property and set it to the value center. This will horizontally center-align the text within its containing element.
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