Rotate image with onclick

Question

I try to make a toggle button where my image (an arrow) will be rotated by 180 degrees each click:

Answer 1

This will enable you to perform an additional rotation of each clik

var degrees = 0;
  $('.img').click(function rotateMe(e) {

    degrees += 90;

    //$('.img').addClass('rotated'); // for one time rotation

    $('.img').css({

      'transform': 'rotate(' + degrees + 'deg)',
      '-ms-transform': 'rotate(' + degrees + 'deg)',
      '-moz-transform': 'rotate(' + degrees + 'deg)',
      '-webkit-transform': 'rotate(' + degrees + 'deg)',
      '-o-transform': 'rotate(' + degrees + 'deg)'
    });

https://jsfiddle.net/Lnckq5om/1/