To manual creating window use next html structure:
<div class="window">
<div class="caption">
<span class="icon icon-windows"></span> //window icon, also you can use img tag
<div class="title">Window caption</div> // window title
<button class="btn-min"></button> // minimize button
<button class="btn-max"></button> // maximize button
<button class="btn-close"></button> // close button
</div>
<div class="content">
Window content
</div>
</div>
To set inactive mode, you can add subclass inactive to div with class window
<div class="window inactive"> ... </div>
To set shadow for window, you can add subclass shadow to div with class window
<div class="window shadow"> ... </div>
<div class="window flat"> ... </div> <div class="window flat shadow"> ... </div>