In CSS, pc is an absolute unit; the absolute unit is a fixed value, which reflects a real physical size and will not be affected by the screen size or font; the full name of pc is Picas, which means pie. Card, card is also a printing term, and "1pc = 16px".
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
What is the unit of pc in css
The pc is the absolute unit in css
In CSS, absolute units include: px, pt, pc, cm, mm, in, etc. An absolute unit is a fixed value that reflects a true physical size. It is not affected by screen size or font size. Their size depends on the value and the resolution of the screen (DPI, dots per inch). px is one of our most commonly used absolute units. The conversion relationship between these absolute units is as follows:
1in = 25.4mm = 2.54cm = 6pc = 72pt =96px
pc
pc stands for Picas, which means Paica. It is equivalent to the size of my country's new No. 4 type. Paica is also a printed term, 1 paica is equal to 12 points. Its conversion relationship with px is as follows:
1pc = 16px
Expand knowledge
px stands for Pixels, which means pixels. It is not strictly equal to the pixels of the display, especially on high-definition screens. Although CSS units scale appropriately depending on the browser, operating system, or hardware, and may vary under certain devices or user resolution settings, 96px is generally equal to the size of one physical inch.
CSS defines the display method of raster images (such as photos, etc.) as the default size of each image is 1px. The length and width of a "600x400" resolution photo are "600px" and "400px" respectively, so the pixels of the photo itself are not consistent with the pixels of the display device, but are consistent with the px unit. This allows the image to be completely aligned with other elements of the web page.
Many times, px is also often called CSS pixel. It is an absolute unit, but can also be considered a relative unit, since pixel units are relative to device pixels. On the same device, the physical pixel represented by each CSS pixel can change; between different devices, the physical pixel represented by each CSS pixel can change.
.box {
width: 100px;
height: 100px;
}
pt stands for Point, which means point. It is often used in software design and typesetting and printing industries (the final product of the front-end system I am working on is a PDF that needs to be printed, so this unit is often used). When using this unit, the result printed on paper will be the same regardless of the resolution of the monitor.
If it is purely for the display of web pages, it is recommended to use the px pixel unit. If you need to output printed products, you can consider using pt.
cm stands for Centimeters, which means centimeters. Its conversion relationship with px is as follows:
1cm = 37.8px
mm stands for Millimeters, which means millimeters. Its conversion relationship with px is as follows:
1mm = 3.78px
in stands for Inches, which means inches. Its conversion relationship with px is as follows:
1in = 96px
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