Edit:
By decent I mean somewhere around 18px, so here between 150% and 175%. I could read at 125%, but while I am it, why not get rid off all the whitespace on the right by zooming and getting even more comfortable.
By perfect eyesight I do mean perfect eyesight in all possible measurements, except reaction speed maybe.
Could you be farsighted? When people say "perfect eye sight" they (typically) mean 20/20 or better, but that's for distance vision. So if you can see things in the distance way better than your friends, that doesn't (necessarily) mean that your up-close vision is great.
(I'm on a 27" 5K monitor, so a good bit larger but not absurdly so, also at arms' length, and while I agree that the font is on the small side it is (to me) crazy huge at 175%).
A reference value above which visual acuity is considered normal is called 6/6 vision, the USC equivalent of which is 20/20 vision: At 6 meters or 20 feet, a human eye with that performance is able to separate contours that are approximately 1.75 mm apart.[4] Vision of 6/12 corresponds to lower, vision of 6/3 to better performance. Normal individuals have an acuity of 6/4 or better (depending on age and other factors).
Huge numbers of senior citizens have 20/20 or better vision but still can't read a computer monitor without reading glasses.
body {
font: 0.8em/145% georgia,times,serif;
font-size/line-height font-family
An Em is a typographical unit that basically means “the current font size”, so it actually nests in CSS/HTML.
Default browser font size tends to be a 16pt pixel equivalent. So in this case this is 80% of that.
Line height is obvious I think, but yeah - it’s in a % of the current font size.
They’re just standard typography syntax (the “size/height” bit anyhow) and units moved into CSS with no change.
https://kyleschaeffer.com/user-experience/css-font-size-em-v...
Now you have a layout that scales with your text!