# Mashup
A Mashup arranges multiple plugin views within a single screen. A fixed mashup modifier (e.g. `mashup--1Lx1R`, `mashup--2x2`) positions the views, while each view's own modifier sets how much space it occupies. Fluid Mashups use the `mashup--3x3` layout and cell placement modifiers for custom tilings.
You don't specify the Mashup. When you configure multiple plugins on a single screen, the platform provides the appropriate Mashup container automatically.
You provide the Mashup yourself. Include the `mashup` container with the appropriate layout class in your markup (e.g. `mashup--1Lx1R`, `mashup--2x2`).
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### Mashup Layouts
#### Single
In the 1x1 layout, one view spans both columns and both rows, so a single plugin fills the mashup. Pair it with `view--full`, which is sized to the same area.
Plugin A
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#### 1 Left, 1 Right
In the 1Lx1R layout, the first plugin occupies the left column while the second occupies the right column.
Plugin A
Plugin B
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```
#### 1 Top, 1 Bottom
In the 1Tx1B layout, one plugin spans the top row while the other occupies the bottom row.
Plugin A
Plugin B
```
```
#### 1 Left, 2 Right
In the 1Lx2R layout, one plugin occupies the left column while two plugins stack in the right column.
Plugin A
Plugin B
Plugin C
```
```
#### 2 Left, 1 Right
The 2Lx1R layout stacks two plugins in the left column, with a single plugin in the right column.
Plugin A
Plugin B
Plugin C
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```
#### 2 Top, 1 Bottom
In the 2Tx1B layout, two plugins are presented side by side in the top row, with a single plugin in the bottom row.
Plugin A
Plugin B
Plugin C
```
```
#### 1 Top, 2 Bottom
The 1Tx2B layout places one plugin in the top row, with two plugins side by side in the bottom row.
Plugin A
Plugin B
Plugin C
```
```
#### 2 x 2 Grid
The 2x2 layout places four plugins in two rows of two.
Plugin A
Plugin B
Plugin C
Plugin D
```
```
### Fluid Mashups
The `mashup--3x3` layout arranges [View](/framework/docs/3.4/view) instances on a three by three grid that you carve up yourself. Each `mashup-cell` uses column, row, and span modifiers to set its place. A grid can hold nine equal tiles or a few large regions, and every cell draws its own border and surface at any size.
A view inside a mashup cell always fills the cell, whatever view size class it carries. `w--*` and `h--*` utilities on that view have no effect; size the content inside the view instead.
#### Available Modifiers
Combine one modifier from each group to place a cell. Column, row, and span values range from 1 to 3.
Keep start plus span at 4 or less. The grid is three columns wide, so `mashup-cell--col-2` with `mashup-cell--col-span-3` reaches past the edge and adds an auto-sized fourth column, which re-lays the whole mashup. The same holds for rows.
| Class | Description |
| --- | --- |
| `mashup-cell--col-1` | Starts the cell at column 1 |
| `mashup-cell--col-2` | Starts the cell at column 2 |
| `mashup-cell--col-3` | Starts the cell at column 3 |
| `mashup-cell--col-span-1` | Spans 1 column |
| `mashup-cell--col-span-2` | Spans 2 columns |
| `mashup-cell--col-span-3` | Spans 3 columns |
| `mashup-cell--row-1` | Starts the cell at row 1 |
| `mashup-cell--row-2` | Starts the cell at row 2 |
| `mashup-cell--row-3` | Starts the cell at row 3 |
| `mashup-cell--row-span-1` | Spans 1 row |
| `mashup-cell--row-span-2` | Spans 2 rows |
| `mashup-cell--row-span-3` | Spans 3 rows |
#### 3 x 3 Grid
Nine `mashup-cell` elements with no placement fill the grid from left to right, top to bottom, giving an even grid of equal tiles.
Plugin A
Plugin B
Plugin C
Plugin D
Plugin E
Plugin F
Plugin G
Plugin H
Plugin I
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```
#### Feature and Sidebar
Add `mashup-cell--col-*` and `mashup-cell--row-*` to choose the starting cell. Add the matching `*-span-*` modifiers to span up to three cells in either direction.
Plugin A
Plugin B
Plugin C
Plugin D
```
```
#### Banner and Split
Cells span in either direction. This grid runs a full width banner across the top, a two by two block below it, and a tall cell down the right.
Plugin A
Plugin B
Plugin C
```
```
#### Title Bars
Add a [Title Bar](/framework/docs/3.4/title_bar) to a cell to label its plugin. Place the `title_bar` as a sibling of `layout` inside the view, the same as a standalone view. Every cell uses the compact title bar, whatever its size, and the layout above shrinks to make room for it.
72°
Weather
2 PM
Agenda
Wed 14
Calendar
84%
Battery
```
72°
Weather
2 PM
Agenda
Wed 14
Calendar
84%
Battery
```
### Screen Backdrop Modifier
#### Default vs Backdrop Mashups
By default, a mashup is a white screen with a border around each view. `screen--backdrop` swaps that for a patterned background on 1-bit, or a solid gray field on 2-bit and deeper screens, with plain white views on top.
Plugin A
Plugin B
```
```
Previous [
## Columns
Implement zero-config column layouts for content organization
](/framework/docs/3.4/columns)
Next [
## Element Sizes
Every size class of every text element, side by side on one page
](/framework/docs/3.4/element_sizes)