Currently the skin uses the following CSS to set the padding of the main content area which causes an inconsistency which is not too nice.
.pl-md-5, .px-md-5 { padding-left: 3rem !important; }
While the inconsistency is not apparent on larges screen, it actually on medium size screens such as the ones on tablets. Thus I suggest to also set "padding-right" to "3rem !important":
.pl-md-5, .px-md-5 { padding-left: 3rem !important; padding-right: 3rem !important; }
Small size screens to not have the issue at all.