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HTTP/1.1 301 Moved Permanently
Date: Mon, 29 Dec 2025 16:13:43 GMT
Server: Apache/2.4.58 (Ubuntu)
Location: https://erty.me/random/width/
Content-Length: 311
Content-Type: text/html; charset=iso-8859-1
HTTP/1.1 200 OK
Date: Mon, 29 Dec 2025 16:13:43 GMT
Server: Apache/2.4.58 (Ubuntu)
Last-Modified: Tue, 22 Oct 2024 04:06:44 GMT
ETag: "1849-62508e5b7f9ef-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 1473
Content-Type: text/html
Widths
Widths in CSS
Absolute Units
cm - One centimeter
mm - One millimeter
Q - One quarter millimeter
in - One inch
px - One "pixel"
pt - One point (1/72 of an inch)
pc - One pica (1/6 of an inch)
Relative Units
em () - Container font size (see note below).
ex () - x-height of container font size (see note below).
ch () - Width of "0" in container font size.
rem () - Width of "m" in root (<html>) font size.
vw () - 1% of width of window.
vh () - 1% of height of window.
vmin () - 1% of min(width, height) of window.
vmax () - 1% of max(width, height) of window.
% () - 1% of container width.
Note: an "em" is traditionally the with of the letter "m", but in CSS it's defined as equal to the font size. For example, in this font at 14px, an "m" is 13.28px wide, but one "em" is 14px. Credit to Julia Evans for pointing this out.