Columns

MaTiSSe supports multi-column layouts within a slide using the columns environment.

Syntax

$columns

$column[column_options]
column 1 content

$column[column_options]
column 2 content

...

$endcolumns

Tag	Description
$columns / $endcolumns	Open and close the columns environment
$column[opts]	Start a new column. [opts] is CSS for that column.

The number of columns is counted automatically — you do not declare it explicitly.

Always specify width

Without an explicit width on each $column, the browser may produce unpredictable layouts. Make sure the widths sum to 100% (or slightly less to leave a gutter).

Example — two columns with a vertical separator

$columns

$column[width:60%;padding-right:1%;border-right:1px solid #4788B3;]

This is the left column — 60% wide, separated by a vertical line.

$$
\nabla^2 \phi = 0
$$

$column[width:38%;padding-left:1%;]

This is the right column — 38% wide, with a small gutter.

$figure
$content[width:90%;]{images/solution.png}
$caption{Computed solution}
$endfigure

$endcolumns

Example — code beside figure

#### Implementation

$columns

$column[width:55%;]

```python
def solve(A, b):
    return np.linalg.solve(A, b)

$column[width:45%;]

$figure$style[width:90%;] $content[width:100$caption{Convergence history} $endfigure

$endcolumns

## Nesting

Columns can contain any MaTiSSe environment — math, figures, boxes, notes, tables, and video. Box-like environments (`$box`, `$note`, `$figure`, `$table`) **cannot** themselves contain a `$columns` environment.