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With this set, an image meant to be 5 inches wide at 300dpi will actually display as 5in wide; without this set, the image would display as approximately 15.6in wide since the image is 15000 image pixels across, and by default CSS displays 96 image pixels per inch.
Colors are displayed combining RED, GREEN, and BLUE light. CSS colors are defined using a hexadecimal (HEX) notation for the combination of Red, Green, and Blue color values (RGB).The lowest value that can be given to one of the light sources is 0 (HEX 00). The highest value is 255 (HEX FF).olors are displayed combining RED, GREEN, and BLUE light. CSS colors are defined using a hexadecimal (HEX) notation for the combination of Red, Green, and Blue color values (RGB).