There are two new values in CSS3 as well, start and end. These values make multiple language support easier, For example, English is a left-to-right (ltr) language and Arabic is a right-to-left (rtl) language. Using “right” and “left” for values is too rigid and doesn’t adapt as the direction changes.
Not change According To direction
text-align: left; and text-align: right; not change according to CSS property ( direction:ltr; or direction:rtl; )
Change According To direction
text-align: start; and text-align: end; change according to CSS property ( direction:ltr; or direction:rtl; )