CSS Grid for Adaptive Designs Quiz Quiz

Explore your understanding of CSS Grid concepts used for adaptive website layouts. This quiz covers grid template areas, responsive techniques, implicit and explicit tracks, and crucial functions for creating flexible grid-based designs.

1. Grid Template Areas Syntax

   Which of the following CSS declarations correctly defines grid template areas for a two-row, two-column layout with areas named 'header', 'sidebar', and 'content'?

   1. grid-area: 'header header' / 'sidebar content';
   2. grid-template-areas: 'header header' 'sidebar content';
   3. grid-template: 'header sidebar' 'header content';
   4. template-areas: 'header' 'sidebar'; 'header' 'content';

   Explanation: The correct approach uses 'grid-template-areas' with each string representing a row of area names, creating a two-row, two-column grid. 'grid-area' is used to assign an area to a grid item, not to define the grid structure itself. 'template-areas' is not a valid CSS property, and the last option uses incorrect area assignments by duplicating 'header' in both columns of two rows, which isn't valid for this structure.

2. Responsive Grid with auto-fill

   If you want grid items in a container to adapt automatically to the viewport by filling each row with as many 200px columns as possible, which line of code should you use?

   1. grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
   2. grid-columns: repeat(200px, auto-fill);
   3. grid-template-columns: repeat(1fr, 200px);
   4. grid-template-columns: auto-fit 200px;

   Explanation: Using 'repeat(auto-fill, minmax(200px, 1fr))' tells the grid to create as many columns as fit, each at least 200px wide, and stretch them if there is extra space. 'grid-columns' is not a valid property, and 'auto-fit 200px' is incorrect syntax. 'repeat(1fr, 200px)' has the order of values reversed and won't produce the intended responsive behavior.

3. Implicit vs Explicit Grid Tracks

   Consider a grid container with 'grid-template-columns: 1fr 1fr' but five child elements. What happens to items that have no explicitly defined grid tracks?

   1. They cause an error and overflow the container by default.
   2. They remain hidden unless specified explicitly.
   3. They are forced into the first row, overlaying each other.
   4. They automatically generate implicit tracks to accommodate the extra items.

   Explanation: CSS Grid will create new implicit tracks as needed to fit all child items, so extra items start new rows. There is no error or overflow by default. Items are not hidden, as CSS Grid tries to display all children. Overlaying in a single row only occurs if all items are assigned to the same grid cell explicitly, which doesn't apply here.

4. Aligning Individual Grid Items

   To position a single grid item vertically within its grid cell, which property should you use if you want it centered?

   1. align-content: center;
   2. align-self: center;
   3. grid-row: center;
   4. justify-content: center;

   Explanation: 'align-self: center' targets an individual grid item’s vertical position within its cell. 'justify-content' and 'align-content' are for aligning the whole grid or grid tracks, not specific items. 'grid-row: center' is not a valid value for aligning content within a cell, and therefore will not produce the intended centering.

5. Grid Gap and Adaptive Spacing

   Which property is best suited to create consistent spacing between both rows and columns in a CSS Grid layout for adaptive designs?

   1. gap: 1rem;
   2. padding: 1rem;
   3. spacing: 1rem;
   4. margin: 1rem;

   Explanation: 'gap' is specifically designed to add even spacing between rows and columns in CSS Grid layouts. 'margin' and 'padding' affect spacing around or inside individual elements, not the space between grid tracks. 'spacing' is not a recognized CSS property, so it won’t have any effect on the grid’s layout.