How can i get default font size in pixels by using JavaScript or JQuery?

Question

As you know em is a relative font measurement where one em is equal to the height of the letter \"M\" in the default font size. An advantage in using it is because you will be a

Answer 1

If you use rem as unit the default 'font-size' need take from , not from body or other.

alert(window.getComputedStyle(document.documentElement).getPropertyValue('font-size'))