Looks like the CSS was modified. The CSS is very strict and adjusting its widths won't work without the image being adjusted and any other widths that are based off the parent width also being adjusted. The plan is to upgrade the template to use Bootstrap panel classes so it's completely flexible and responsive, but until then you have to leave the width as it outputs. I recommend restoring the rounded template CSS and applying the below to fix the box sizing conflict with Bootstrap then just let them overflow as needed.