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Masonry Layout - CSS: Cascading Style Sheets | MDN

 4 years ago
source link: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Masonry_Layout
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Masonry Layout

Level 3 of the CSS Grid Layout specification includes a masonry value for grid-template-columns and grid-template-rows. This guide details what masonry layout is, and how to use it.

Important: This feature is only implemented in Firefox, and can be enabled by setting the flag layout.css.grid-template-masonry-value.enabled to true, in order to allow testing and providing of feedback.

Masonry layout is a layout method where one axis uses a typical strict grid layout, of most often columns, and the other a masonry layout. On the masonry axis, rather than sticking to a strict grid with gaps being left after shorter items, the items in the following row rise up to completely fill the gaps.

Creating a masonry layout

To create the most common masonry layout, your columns will be the grid axis and the rows the masonry axis. Define this layout with grid-template-columns and grid-template-rows:

.container {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  grid-template-rows: masonry;
}

The child elements of this container will now lay out item by item along the rows, as they would with regular grid layout autoplacement. However, as they move onto a new row the items will display according the masonry algorithm. Items will load into the column with the most room causing a tightly packed layout without strict row tracks.

It is also possible to create a masonry layout with items loading into rows.

Controlling the grid axis

On the grid axis, things will work just as you expect them to in grid layout. You can cause items to span multiple tracks while remaining in auto-placement, using the span keyword. Items may also be positioned using line-based positioning. 

Masonry layout with spanning items

In this example two of the items span two tracks, and the masonry items work around them.

This example includes an item which has positioning for columns. Items with definite placement are placed before the masonry layout happens.

Controlling the masonry axis

The masonry axis operates under different rules as it is following the masonry layout rules rather than normal grid auto-placement rules. To control this axis we have three additional properties defined in the Grid Level 3 specification align-tracks, justify-tracks, and masonry-auto-flow.

masonry-auto-flow

The masonry-auto-flow property gives you a way to change how the masonry algorithm behaves. Give it a value of next and items will display in order on the grid axis, rather than going into whichever track has the most free space. The value positioned will ignore items with definite placement and place items in order-modified document order.

align-tracks

The align-tracks property allows for the alignment of items in grid containers with masonry in their block axis. The property aligns the items within their track, much in the way flex layout works. The property takes the same values as align-content, however you can specify multiple values to have different alignment values per track on the grid axis.

If you specify more values than tracks the additional values are ignored. If there are more tracks than values any additional tracks will use the last specified value.

justify-tracks

The justify-tracks property works in the same way as align-tracks, however it is used when the masonry axis is the inline axis.

Fallback

In browsers that do not support masonry, regular grid auto-placement will be used instead. 

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