How do I modify the image size on Blog Lists?

Site URL: https://www.innatevaluecoaching.com/blog

Hey all, I have gone through every setting I can find and still haven't been able to find a way to customize the size of images on the blog list page? They seem HUGE to me and it's also causing stretching because it's a set size (see 2nd image on page). How can I customize the size of them using settings or custom CSS? 

Thank you!!

Well there is one simple thing you can do. Put your blog in the unlinked section of your site, create a new blank page, add a summary block pulling content from your blog, set the layout to list. Now you will have an image slider to adjust its size in the summary edit panel for each post/item. One summary block will display 30 posts, and you can chain them together on the same page. 

I'm in the same boat -  I followed Derrick's advice but after creating the blank page there are no controls to add anything. Is there a trick?

If you are using 7.1 you have to add a section to a blank page. Hit edit up in the left hand corner then add secion will pop up in the middle of the blank page. Add a blank section in the panel that opens up on the left. Then hover over the middle of that section (it might default to text) click the blue and white + sign and then add a summary block. Choose the layout you want. At that point you choose the blog page as its content.  

What if you are not using 7.1?