# HTML Overlay
Allows applications to overlay data on top of maps using a HTML container.
## Properties
##### `redraw` (Function)
Called every time the map updates.
Parameters:
- `width` {Number} - width of the viewport
- `height` {Number} - height of the viewport
- `project` {Function} - get screen position `[x, y]` from geo coordinates `[lng, lat]`
- `unproject` {Function} - get geo coordinates `[lng, lat]` from screen position `[x, y]`
##### `style` (Object)
Additional css styles of the `div` container.
##### `captureScroll` (Boolean)
- default: `false`
Stop propagation of mouse wheel event to the map component. Can be used to stop map from zooming when this component is scrolled.
##### `captureDrag` (Boolean)
- default: `false`
Stop propagation of dragstart event to the map component. Can be used to stop map from panning when this component is dragged.
##### `captureClick` (Boolean)
- default: `false`
Stop propagation of click event to the map component. Can be used to stop map from calling the `onClick` callback when this component is clicked.
##### `captureDoubleClick` (Boolean)
- default: `false`
Stop propagation of dblclick event to the map component. Can be used to stop map from zooming when this component is double clicked.
## Source
[html-overlay.js](https://github.com/visgl/react-map-gl/tree/6.0-release/src/overlays/html-overlay.js)