Hi Valerie,
For Custom Headline, please apply Responsive Text:http://theme.co/x/demo/integrity/1/shortcodes/responsive-text/
To use this on Cornerstone, add it via Settings Tab > Responsive Text. If the selector is .h-responsive, you can add h-responsive without the dot on the Custom headline class field.
Regarding the MAP, I can see that you have added width: 600px; on the MAP column style field. Please change this to max-width: 600px;
Hope this helps.