A always arranges its content in a common vertical box (the box itself is invisible). Likewise for horizontal elements.

总是把其中的内容布置在垂直的框中(框本身是不可见的)，类似地，元素把内容布置在水平的框中。

youdao

Many of the tags provide invisible structure: toolbox, hbox, and Vbox are container tags that affect layout of their collected elements (for example, "Vbox" is short for "vertical box").

在这些标签中，很多都提供了不可见的结构：toolbox、hbox和vbox是容器标签，可以对它们所包含的元素的布局产生影响(比如说，“vbox”是“vertical box”的简写)。

youdao

Position precedence rule. When resolving the float box position, the optimum vertical constraint takes precedence over the optimum horizontal constraint.

位置优先原则：在判断浮动框位置时，最佳垂直限制优于最佳水平限制。

youdao

The sketch, a preparatory drawing for one of the vertical box assemblages that were a frequent theme of Judd's work at the time, could easily be mistaken for a floor plan of the building, a series of stacked volumes one atop the other.

WSJ: Donald Judd's SoHo Haven

While incumbent software companies such as Microsoft, Oracle and IBM provide vertical solutions that include an end to end services for developers, Box is challenging them by offering what cofounder and CEO Aaron Levie calls an open system where developers can choose from a variety of providers and plug in to any of them.

FORBES: Box.net's Pitch To Developers: Box Innovation Network