themes-wordpress/calm-business/sass/modules/_clearings.scss

.clear:before,
.clear:after,
.entry-content:before,
.entry-content:after,
.comment-content:before,
.comment-content:after,
.site-header:before,
.site-header:after,
.site-content:before,
.site-content:after,
.site-footer:before,
.site-footer:after {
	@include clearfix;
}

.clear:after,
.entry-content:after,
.comment-content:after,
.site-header:after,
.site-content:after,
.site-footer:after {
	@include clearfix-after;
}