Same browser, and same result (probably). The left negative margin on the first line is too large, the initial "i" is too far to the left and overhangs the line

Same browser, and same result (probably). The left negative margin on the first line is too large, the initial "i" is too far to the left and overhangs the line. O.45em vs other sizes probably depends a lot on font/rendering/minor details that the website may not be able to control.