HTML
An HTML asset contains HTML code. The code can either be a full HTML page or just partial HTML. You can create a new HTML asset in the Editor or by uploading a file with an .html extension.
To edit an HTML asset, right click on it in the Editor and select Edit.
Inspector

The HTML asset inspector displays a preview of the HTML code contained in the asset.
Properties
This asset type has no configurable properties in the Inspector. It displays a read-only preview of the HTML code.
tip
To use this asset in scripts, see Asset Attributes.