### Initialize and run a Textual server

Source: https://github.com/textualize/textual-serve/blob/main/README.md

Demonstrates how to import the Server class, initialize it with a command to launch a Textual app, and start the server. This setup allows the application to be accessed via a web browser.

```python
from textual_serve.server import Server

server = Server("python -m textual")
server.serve()
```

--------------------------------

### Install textual-serve via pip

Source: https://github.com/textualize/textual-serve/blob/main/README.md

The command to install the textual-serve package from PyPI using the pip package manager.

```bash
pip install textual-serve
```

--------------------------------

### Style application interface layout with CSS

Source: https://github.com/textualize/textual-serve/blob/main/src/textual_serve/templates/app_index.html

Defines the visual structure for the application, including dialog containers, terminal transitions, and button styling. It uses CSS variables and flexbox to ensure a responsive and centered layout.

```css
body { background: #0c181f; }
.dialog-container { position: absolute; width: 100vw; height: 100vh; display: flex; align-items: center; justify-content: center; z-index: 10; box-shadow: var(--shadow-elevation-high); }
.intro { width: 640px; height: 240px; font-family: "Roboto Mono", menlo, monospace; background-color: #12232d; display: flex; align-items: center; justify-content: center; }
Button { padding: 16px 32px; background-color: #5e0ba7; color: rgba(255, 255, 255, 0.95); border: none; }
```

--------------------------------

### Manage session lifecycle with JavaScript

Source: https://github.com/textualize/textual-serve/blob/main/src/textual_serve/templates/app_index.html

Provides utility functions to handle URL parameter manipulation for restarts and asynchronous ping requests to maintain session state. These functions interact with the DOM to determine the current ping URL and navigation target.

```javascript
function getStartUrl() {
  const url = new URL(window.location.href);
  const params = new URLSearchParams(url.search);
  params.delete("delay");
  return url.pathname + "?" + params.toString();
}

async function refresh() {
  const ping_url = document.body.dataset.pingurl;
  if (ping_url) {
    await fetch(ping_url, { method: "GET", mode: "no-cors" });
  }
  window.location.href = getStartUrl();
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.