According to the documentation.

What is text size. Whats the difference between the text data type and the character varying varchar data types. When designing a responsive website remember that measure and font size affect not only people using hand-held devices. It is the text size browsers display by default and 16-pixel text on a screen is about the same size as text printed in a book.

When font size increases inline items and container boundaries can crowd text making it less readable. Large Devices and Font Size. The actual appearance of a typeface at a particular size varies with the size of its ascenders descenders and x-height.

To make your font size smaller or larger. Use the slider to choose your font size. See screenshot below 3 When finished you can close Settings if you like.

The text is harder to read. The size can be calculated from pixels to em using this formula. You can specify font size in any of the following ways.

Because of this the text will always be displayed at the same size regardless of its. If character varying is used without length specifier the type accepts strings of any size. At large font sizes an inline layout might cause text to truncate or result in overlapping text and secondary items.

By extension a font-size of 1em equals the computed font-size of the element on which it is used. The latter is a PostgreSQL extension. For example if you display text inline with secondary items such as glyphs or timestamps the text has less horizontal space.