about HTML: as shown in the picture. I have two p tags with the same length of text in textEditor, but they display different length in HTML, can any one tell me the reason, Thank you !

CodePudding user response：

A monospaced font, also called a fixed-pitch, fixed-width, or non-proportional font, is a font whose letters and characters each occupy the same amount of horizontal space. This contrasts with variable-width fonts, where the letters and spacings have different widths.

(from Monospaced font - Wikipedia)

Your editor on the left is using a monospaced font whereas the rendered HTML on the right uses a variable-width font.