Feature suggestion: Responsive theme

Please consider including a responsive theme. I am doing this for my own site’s reCaptcha form, using Bootstrap styles.

Please see the following page for responsive example:
http://www.utc.edu/public-safety/forms/silent-witness.php
vs. WordPress styling… not responsive; breaks layout on phone
http://blog.utc.edu/news/2014/03/state-university/

Or, perhaps someone can suggest a way to insert an additional theme, or override the theme.

https://ww.wp.xz.cn/plugins/wp-recaptcha/