title: Emacs font sizing with Ctrl key and mouse scroll
body: <p>notepad++ allow me to increase the font size when I hold the <kbd>Ctrl</kbd> Key and rotate the mouse middle scroll button to forward.</p>
  
  <p>In the same way, the when I hold <kbd>Ctrl</kbd> and rotate the mouse middle scroll button backward, the fond size reduces.</p>
  
  <p>How can I get the same with Emacs?</p>