How to set default font size in Emacs 25?
<ol>
<li>Old ~/.emacs ignored in Emacs 25:</li>
</ol>

<p>(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(default ((t (:background nil :family "Droid Sans Mono" :foundry "unknown" :slant normal :weight normal :height 164 :width normal))))</p>

<ol start="2">
<li>Menu > Set default font, Menu > Save Options - don't save selected font after restart.</li>
</ol>

<p>Total, options ran out. Where can I find documentation on how to do this in Emacs 25?</p>