> ## Documentation Index > Fetch the complete documentation index at: https://aether.baimoqilin.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # WebView Node: HTML Micro-UIs in Aether Extension Pages > Use ui.web() to embed a fully capable WebView inside any Aether extension surface or page, with bidirectional communication via Aether.postMessage. When the declarative node types aren't enough, `ui.web()` embeds a real Android WebView directly inside your surface or page, giving you access to the full HTML, CSS, and JavaScript stack. Use it for custom visualizations, rich layouts, or any interaction model that the native node set doesn't cover. ## API signature ```typescript theme={null} ui.web(opts: WebNodeOptions) ``` ## Options The complete HTML content to render inside the WebView. This is a full HTML document string — include `` and a `` for reliable rendering across Android versions. Explicit height in dp. If omitted, the WebView fills the available vertical space in its container. *** ## What's enabled in the WebView The following capabilities are enabled by default in every `ui.web()` WebView: * **JavaScript execution** — `