If you are going to override it make all box-shadow values none, and add to additional .css in customizer
img {
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
}
original:
img {
-webkit-box-shadow: 0 20px 35px -5px rgba(0,0,0,0.3);
-moz-box-shadow: 0 20px 35px -5px rgba(0,0,0,0.3);
-ms-box-shadow: 0 20px 35px -5px rgba(0,0,0,0.3);
-o-box-shadow: 0 20px 35px -5px rgba(0,0,0,0.3);
box-shadow: 0 20px 35px -5px rgba(0,0,0,0.3);
-webkit-border-radius: 0;
-moz-border-radius: 0;
-ms-border-radius: 0;
-o-border-radius: 0;
border-radius: 0;
}
ps… this does not seem part of the original theme (unless you have pro version, then contact their support).
Something else might be adding the shadow to your img, if you turned it off there that would be best (less .css)
