What is the difference between the em and rem units when setting font size in CSS?
- em and rem are identical; there's no difference between them.
- em is a fixed unit equivalent to 16px, while rem is relative to the parent element.
- em is a unit of measurement for page width, while rem is for font size.
- em is relative to the font-size of the element itself, while rem is relative to the font-size of the root element (html).
The em unit is relative to the font-size of the element itself, while the rem unit is relative to the font-size of the root element (html). This means that em units can compound if used within nested elements, whereas rem units remain consistent throughout. Understanding this difference is crucial for responsive design.
You're working on a project where you need to ensure that your CSS code is compatible with the last two versions of all major browsers. Which tool would be best suited for this requirement?
- Autoprefixer
- CSS Lint
- SASS
- CSS Grid
For ensuring compatibility with the last two versions of major browsers, Autoprefixer is the ideal tool. It automatically adds vendor prefixes to your CSS code, ensuring that your styles work in various browsers. This is essential for maintaining cross-browser compatibility.
Which property in CSS is used to control how inherited values and set values are used by an element and its child elements?
- color
- display
- inherited
- position
The property used to control how inherited values and set values are used by an element and its child elements is the inherited property. It allows for the explicit declaration of whether a property should be inherited by child elements. This is particularly useful for managing the cascading nature of CSS.
The space between the content of an element and its border is determined by the ________ property.
- Border
- Margin
- Outline
- Padding
The space between the content of an element and its border is determined by the "padding" property in CSS. Padding provides the spacing between the content and the border of an element, allowing you to control the inner spacing.
To ensure that fonts are loaded from the same origin, you can use the ________ HTTP header.
- Access-Control-Allow-Origin
- Cache-Control
- Content-Disposition
- User-Agent
To ensure that fonts are loaded from the same origin, you can use the Access-Control-Allow-Origin HTTP header. This header specifies which origins are permitted to access a resource, which is useful for preventing cross-origin resource sharing issues.
You're creating a fluid typography system where the font size should never go below 16px, never exceed 32px, and scale smoothly between these values based on the viewport width. Which CSS function will help you achieve this?
- calc(16px + 3vw + 1vh - 32px)
- clamp(16px, (3vw + 1vh), 32px)
- fluid-size(16px, 32px)
- font-size: 16px; min-font-size: 32px; vw-font-scale: 3vw; vh-font-scale: 1vh;
To create a fluid typography system with specified limits and smooth scaling based on viewport width, you should use the clamp() function. The correct option is clamp(16px, (3vw + 1vh), 32px), which ensures the font size stays between 16px and 32px while smoothly scaling with viewport width changes.
You're working on a layout where you need to ensure that the width of a button remains constant, regardless of its padding and border. Which CSS property and value would you use?
- width: 100%
- width: auto
- width: max-content
- width: min-content
To make the width of the button remain constant, regardless of its padding and border, you would use width: min-content. This value ensures that the button's width is only as wide as its content, ignoring padding and border.
To ensure that a block of text doesn't wrap to the next line, you would set the white-space property to ________.
- break-word
- no-wrap
- nowrap
- wrap
To prevent a block of text from wrapping to the next line, you would set the white-space property to nowrap. This property prevents text from breaking at spaces or hyphens, keeping it on a single line.
If you're experiencing a "flash" of unstyled text on your webpage, it might be related to which aspect of font loading?
- "FOBT" - Flash of Bold Text
- "FOFT" - Flash of Font Text
- "FOIT" - Flash of Invisible Text
- "FOUT" - Flash of Unstyled Text
A "FOUT" (Flash of Unstyled Text) occurs when web fonts take a bit of time to load, and during this time, the browser displays text in the default font before switching to the web font. This can be mitigated by using techniques like font preloading or font-display property in CSS.
How do you position an item in the third row and second column of a grid?
- By applying the grid-area: 3/2; attribute.
- By using the grid-position: 3/2; property.
- By using the grid-row: 3, grid-column: 2; property.
- It's not possible to specify the exact position.
To position an item in the third row and second column of a grid, you use the grid-row and grid-column properties. For example, you can set grid-row: 3 and grid-column: 2 to achieve this precise placement.