: What is the purpose of single row and single column marquee tools in Photoshop? Today I dared to ask a very basic but all time ignored question about the purpose of single row and single

@Eichhorn212

A single px line is often used as an accent to separate sections in web design. While these objects might be borders or horizontal rules when coded, in a mockup it's still important to show them.

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@Ravi4787994

It's been a while, but before it was possible to create gradients using exclusively CSS it was a handy tool to isolate a 1 px cross-section of a vertical or horizontal gradient to use as a background image.

So if you had the following image as a mockup you could use the single-column marquee tool to grab a 1 x 64 px slice and save it as a lightweight GIF and use CSS to repeat it horizontally.

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@Gretchen549

You might want to read Andrei Herasimchuk's answer to a similar question on Quora.

In short, there's no obvious purpose, but they can be used to create guides by selecting a single line and filling it with a color. This seems a bit redundant now that Photoshop has real guides, but I guess the single pixel line allows you to get a bit more creative about how you use them.

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