Draw a horizontal guide around 450px from the top border, we will use it as a reference guide to add a shade on top of the page.

用顶边下来450 px处画一条水平参考线，我们将要用它给顶部添加阴影作为参考。

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Left - Increase the generated box's top margin so that the top border edge is below the bottom margin edge of any left float boxes generated from previous source elements.

left -增加所生成框的上边框，以便上border edge处于由之前的源元素所生成的任一左浮动框的底margin edge之下。

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Right - Increase the generated box's top margin so that the top border edge is below the bottom margin edge of any right float boxes generated from previous source elements.

right -增加所生成框的上边框，以便上border edge处于由之前的源元素所生成的任一右浮动框的底margin edge之下。

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At the top of the mountain was the United States border with Canada.

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Combating border violence is expected to top discussions with Mexican President Felipe Calderon, along with trade and commercial issues and immigration concerns.

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When I reached the top almost to the border we were suddenly surrounded by Serb forces.

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The textured design is complimented nicely by a metal border on the top and bottom.

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Smith and fellow opener Alvaro Petersen (67) put on 153, with Smith overtaking Allan Border to become the top-scoring Test captain before falling for 100.

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