Results: 126
cm - centimeters
mm - millimeters
in - inches (1in = 96px = 2.54cm)
px - pixels (1px = 1/96th of 1in)
pt - points (1pt = 1/72 of 1in)
pc - picas (1pc = 12 pt)
Relative to the width of the "0" (zero)
Relative to the x-height of the current font (based on font-size and font-family)
Relative to 1% of viewport's* larger dimension (width or height) https://youtu.be/unj9nAeYU1Q?t=291
Relative to 1% of viewport's* smaller dimension (width or height) https://youtu.be/unj9nAeYU1Q?t=291
Relative to font-size of the root element (HTML)
default HTML font-size
default HTML font-size is
16px
which we can see using dev tools:
Inspect element
-> select <html> element
-> computed styles
-> show all (checkbox)
-> search font-size
Relative to 1% of the height of the viewport
Relative to the parent element
h1 {
    transform: translateY(-50%);
}
Results: 126