However, for more complex images, such as the background for the sidebar, we use images purposely made larger than their default display area and position them appropriately.
但是对于更复杂的图像，比如边栏的背景，我们有意地使用比默认显示区域大的图像并适当地进行定位。
Move the block to a position on the sidebar where you would like.
将该区块移至边栏中随意的位置。
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