> ## Documentation Index
> Fetch the complete documentation index at: /llms.txt
> Use this file to discover all available pages before exploring further.
# Weight Wave
> A crest of thickness travels along a headline: each character swells from light to black and leans forward as the wave passes, driven by the wght and slnt variable-font axes rather than by transforms.
# Weight Wave
A crest of thickness travels along a headline: each character swells from light to black and leans forward as the wave passes, driven by the wght and slnt variable-font axes rather than by transforms.
**Weight Wave**
```html weight-wave.html
Weight Wave
```
Copy npx hyperframes add weight-wave to the clipboard
That writes `compositions/weight-wave.html`, plus 2 supporting files under `compositions/assets/fonts/`.
## Add it to your video
It runs for 6 seconds at 1920×1080. Paste this into your composition:
```html index.html
```
Move it in time with `data-start`. Put it on a different timeline row with
`data-track-index`. See [data attributes](/concepts/data-attributes.md) for the rest.
## Variables
Every one of these has a default, so the piece works untouched. Set the ones you
want to change on the element:
| Variable | Default | Accepts | What it does |
| - | - | - | - |
| `text` | `PRESSURE MOVES THROUGH TYPE` | string | |
| `color` | `#f5f5f7` | color | |
| `background` | `#0b0b0d` | color | |
| `weightFrom` | `400` | 300 to 1000, step 10 | |
| `weightTo` | `1000` | 300 to 1000, step 10 | |
| `crestWidth` | `4` | 1chars to 24chars, step 0.5chars | |
| `sweepSpeed` | `0.5` | 0.05passes/s to 3passes/s, step 0.05passes/s | |
| `slant` | `-12` | -15deg to 0deg, step 0.5deg | |
| `direction` | `ltr` | `ltr`, `rtl` | |
Set them with `data-variable-values` on the element that mounts it. These are the
defaults, so this behaves exactly like the preview above until you change one:
```html wrap
```
{/* hf:generated-footer */}
Tagged `typography` `kinetic-type` `title` `variable-font` `text`.
## Related topics
* [Browse the complete Catalog](/catalog.md)
* [Add assets and Catalog items in the browser editor](/studio/assets-and-blocks.md)
* [Put blocks together into one video](/concepts/compositions.md)