Class
Common
```kotlin
class Placeholder(
val width: TextUnit,
val height: TextUnit,
val placeholderVerticalAlign: PlaceholderVerticalAlign,
)
```
A placeholder is a rectangle box inserted into text, which tells the text processor to leave an
empty space. It is typically used to insert inline image, custom emoji, etc into the text
paragraph.
#### Parameters
| | |
| --- | --- |
| width | the width of the placeholder, it must be specified in sp or em. `TextUnit.Unspecified` is not allowed. |
| height | the height of the placeholder, it must be specified in sp or em. `TextUnit.Unspecified` is not allowed. |
| placeholderVerticalAlign | the vertical alignment of the placeholder within the text line. Check `PlaceholderVerticalAlign` for more information. |
## Functions
copy
```kotlin
fun copy(
width: TextUnit = this.width,
height: TextUnit = this.height,
placeholderVerticalAlign: PlaceholderVerticalAlign = this.placeholderVerticalAlign,
): Placeholder
```