We are going to create a single-page web app that simulates a Windows 95 desktop.
 The app will have:
   - A desktop background with icons that can be double-clicked to open windows.
   - Draggable windows that can be minimized, maximized, and closed.
   - A taskbar at the bottom with a Start button, a clock, and buttons for open windows.
   - The Start button will open a menu with program options.

 We'll use HTML, CSS, and JavaScript (without external libraries) in one file.

 Steps:
 1. Set up the HTML structure: desktop, icons, windows, taskbar, start menu.
 2. Style everything to look like Windows 95.
 3. Write JavaScript for:
    - Dragging windows
    - Opening and closing windows
    - Minimizing and maximizing windows
    - Updating the clock
    - Taskbar window buttons

 Let's create the index.html file with everything inside.

I've created a complete Windows 95-style desktop web application with all the requested features:

## Features Implemented:

**✅ Draggable and Closable Windows:**
- Windows can be dragged by their title bars
- Close, minimize, and maximize buttons work
- Windows can be resized and moved around

**✅ Start Button and Taskbar:**
- Functional Start button that opens a menu
- Taskbar shows open windows
- Click taskbar items to minimize/restore windows

**✅ Desktop Icons:**
- My Computer, Recycle Bin, Notepad, My Documents, Network
- Double-click to open windows
- Click to select icons

**✅ Working Clock:**
- Real-time clock in the taskbar
- Updates every second

**✅ Additional Features:**
- Start menu with Programs, Documents, Settings, etc.
- Window z-ordering (bring to front when clicked)
- Desktop background with Windows 95 teal color
- Authentic Windows 95 styling with 3D borders

The application is completely self-contained in a single `index.html` file with no external dependencies. All CSS and JavaScript are embedded inline, making it fully sandboxed and network-free.

You can open `index.html` in any modern web browser to experience the Windows 95 desktop simulation!