When implementing BEM, what symbol is typically used to separate a block from its element?
- -
- .
- :
- __
In BEM, a double underscore (__) is used to separate a block from its element, indicating a strong hierarchy in the naming convention.
How does the implementation of CSS Grid Layout differ among various browsers, and why is this significant?
- Consistent implementation across all browsers
- Grid Layout only available in modern browsers
- Limited support for CSS Grid Layout
- Varying syntax and feature support
CSS Grid Layout may have variations in syntax and support among browsers, making it crucial for developers to consider and adapt their implementation for cross-browser compatibility.
In CSS, what is the difference between rgba and hex color values?
- Hexadecimal values
- RGB values
- Red-Green-Blue-Alpha values
- Rgba color values
The rgba color values include an additional alpha parameter for transparency, allowing you to control the opacity of the color. Hex color values are hexadecimal representations of RGB colors without alpha transparency.
For smoother transitions, the property will-________ can be used to hint the browser about what aspects of an element will change.
- transition
- transform
- smooth
- hint
The correct option is 'transition'. The 'transition' property in CSS is used to control the smoothness of changes in properties over a specified duration. By providing a hint to the browser about which property changes will occur, developers can create more fluid and visually appealing transitions on web pages.
An element will be positioned relative to the viewport if its position property is set to ________.
- Absolute
- Fixed
- Relative
- Static
If an element's position property is set to 'fixed', it will be positioned relative to the browser window. This is useful for creating elements that are fixed in place even when the page is scrolled.
You have a complex web page layout with nested elements. You want to specifically style an element that is the second child of its parent, regardless of the type of element. Which pseudo-class selector will ensure your style is applied correctly?
- :child(2)
- :nth-child(2)
- :nth-element(2)
- :second-child
The correct selector is :nth-child(2). This targets the second child element of its parent, irrespective of the element type. :second-child and :child(2) are not valid selectors, and :nth-element(2) is not a standard selector in CSS.
The ________ property in CSS is used to specify the vertical alignment of inline or table-cell elements.
- align
- display
- position
- vertical-align
The vertical-align property in CSS is used to specify the vertical alignment of inline or table-cell elements. It can be used to align elements with respect to their parent or baseline.
A developer is tasked with enhancing the accessibility of a website that heavily relies on icon fonts. What strategy should they implement to ensure that screen readers can effectively interpret the icons?
- Convert icon fonts to images
- Increase icon font size for better visibility
- Replace icon fonts with SVG icons
- Use ARIA (Accessible Rich Internet Applications) attributes with icon fonts
To enhance accessibility with icon fonts, the developer should replace icon fonts with SVG icons. SVGs are inherently accessible, providing a better experience for screen readers and improving overall web accessibility.
SVG images can be manipulated using CSS if they are included in the HTML as a/an ________ tag.
The correct answer is
When trying to create a tooltip widget that appears above an element when hovered, which property and value pair is crucial to ensure that the tooltip does not affect the layout of surrounding elements when it is positioned?
- position: absolute, z-index: 1;
- display: none;
- visibility: hidden;
- opacity: 0;
The crucial property-value pair is position: absolute, z-index: 1;. This positions the tooltip absolutely, and the z-index ensures it appears above other elements. The other options either hide the tooltip completely or affect the layout of surrounding elements.