frontend.css will break Bootstrap grid styles on mobile

You have really bad CSS rule in one of your files (assets/css/frontend.css):
`@media only screen and (max-width: 768px), (max-device-width: 768px) {
	.row [class*='col-md-'] {
		width: 100%;
		margin: 0;
	}
}`

This will break the Bootstrap grid on mobile devices and affect a lot of themes.
:-)
