Notice how the top margin of the second paragraph is extended vertically to meet the bottom margin of the previous paragraph.

请注意第二个段落的上边框是如何垂直扩展以便与前一段落的底边框相接的。

youdao

Here, you're leaving a generous amount of space for the page footer to ensure that you're not drawing too close to the bottom margin (see Listing 7).

在这里，您将要为页面页脚留下大量的空间，以确保您的绘制不太接近底部边距(请参考清单7)。

youdao

On the vertical dimension, we distribute extra space in a ratio of (1, 4, 2) corresponding to (top margin, button itself, bottom margin).

在垂直方向上，按照与(上边距，按钮本身，下边距)对应的(1,4,2)的比例分配额外空间。

youdao

None is a true bottom-line margin that relates profits to sales after deducting all costs, including the opportunity cost of equity capital.

FORBES: Are You Being Misled By Profit Margins?

Not exactly--Nortel was looking at shedding the low-margin bottom of its optical-components business, saving the jazziest lines for itself.

FORBES: Lighting up Nortel

It may not be long before the Nook business begins contributing to the bottom line, thanks to high-margin book downloads.

WSJ: HEARD ON THE STREET: Barnes & Noble Finds Nook in Book Market