Since the column is a verticalelement, I want the blur to move vertically as well.
因为柱子是一个垂直元素，所以我想要模糊也是垂直的感觉。
2
If it is, the current element must have multiple definitions for the same term, and so the processor puts 3 points of vertical space after the current definition.
如果是的话，则当前元素对同一术语一定有多个定义，因此处理器在当前定义之后留出距离为3点的垂直空间。
3
Another common technique is to repeat the rendering of an image in the background of an element in a horizontal or vertical direction.