The principle is to use the Alpha filter to add a transparent gradient to each table, which is controlled by the background color of the table, and a single TD controls the other gradient
Alpha Filter
Syntax: {filter:alpha (opacity=opacity,finishopacity=finishopacity,style=style,startx=startx,starty=starty,finishx= Finishx,finishy=finishy)}
Filter:alpha (opacity=100, finishopacity=0, style=1, startx=0, starty=0, finishx=0, finishy=100);
The ' Alpha ' attribute is a blend of a target element with the background. Designers can specify values to control the degree of blending. This "mixed with background" is popularly said to be the transparency of an element. By specifying coordinates, you can refer to the transparency of the point, line, and polygon. Their parameters have the following meanings:
"Opacity" represents the level of transparency. The default range is from 0 to 100, and they are actually in percent form. In other words, 0 is completely transparent and 100 is completely opaque. "Finishopacity" is an optional parameter that you can use to specify the transparency at the end if you want to set the transparency effect of the gradient. The range is also 0 to 100. The "style" parameter specifies the shape characteristics of the transparent area. 0 of them represent a uniform shape, 1 are linear, 2 are radial, and 3 represent rectangles. "STARTX" and "Starty" represent the start x and y coordinates of the gradient transparency effect. "Finishx" and "finishy" represent the coordinates of the gradient transparency effect ending with x and Y.
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