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Difference between PX, EM and Percent
The px unit defines a measurement in screen pixels. The following is an example −
div {
padding: 40px;
}The em unit is a relative measurement for the height of a font in em spaces. Because an em unit is equivalent to the size of a given font, if you assign a font to 12pt, each "em" unit would be 12pt; thus, 2em would be 24pt.
The following is an example −
p {
letter-spacing: 4em;
}The % unit defines a measurement as a percentage relative to another value, typically an enclosing element.
p {
font-size: 14pt;
line-height: 80%;
}
Updated on: 12-Jun-2020
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