How to Change CSS direction property of the input field automaticly if the user can use an language rtl or ltr

Question

Example: if I use arabic language the text field direction will be rtl and if I want to write a new text and I switch to the English language the direction inside the text field

Answer 1

aaaaand the css needed is "direction" with the values of "ltr" or "rtl"

css:

textarea.rtl
{
  direction:rtl;
}

textarea.ltr
{
  direction:ltr;
}

or

document.getElementById("myTextArea").style.direction = "rtl"

supported by all major browsers.