The XHTML that hosts this applet is shown in Listing 2 and is just a trivial use of HTML event handlers and iframe.

支持这个 applet 的 XHTML 如清单 2 所示，里面只是 HTML 事件处理程序和 iframe 的简单应用。

youdao

XUL is not some faked-up form of Dynamic HTML either; the menu system can overlay surrounding HTML that's outside the iframe area and it can flood over onto the desktop like a normal popup menu.

XUL也不是靠动态html来模仿的表单；它的菜单系统可以超出if rame的区域，覆盖到HTML的周围，甚至可以像一个一般的弹出菜单那样蔓延到桌面上。

youdao