The padding edge defines the edges of the containing block.

padding edge定义了此包含块的边缘。

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Containing block vertical constraint. A left float box's top margin edge may not be higher than the containing block's top padding edge.

包含块的垂直限制：左浮动框的上margin edge不能高于包含块的上padding edge。

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At the distance of a short city block stood the train station perched in darkness on the edge of the ravine, while below the tracks were illuminated in the amber glow of vapor lamps.

火车站就在附近，隔几个街区就到，坐落在峡谷边缘的黑暗角落里，而进站方向的铁轨在琥珀色的蒸汽灯照耀下却显得灯火通明。

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Munoz was next to be found in the clear but Klos produced a superb, one-handed save to block the midfielder's low drive from the edge of the box.

BBC: SPORT | Football | Europe | Rangers 1-1 Osasuna

Perched on the proverbial auction block, most of the Razer Edge's specs look strikingly familiar -- a 1.7GHz Core i5 (or i7, to match the XPS 12), 4-8GB of RAM and Windows 8.

ENGADGET: Razer Edge vs. the competition: fight!