Issue found in mixins/_media-queries.scss. It was reported to Support few years ago, maybe the ticket didn't go anywhere :).
Code with issues
$li-breakpoints: (
phone-min: '(max-width: #{$screen-xs})',
phone: '(max-width: #{$screen-xs-max})',
phone-and-smaller: '(max-width: #{$screen-xs-max})',
phone-and-down: '(max-width: #{$screen-xs-max})',
phone-only: '(max-width: #{$screen-xs-max})',
phone-landscape: '(max-width: #{$screen-xs-max}) and (orientation: landscape)',
phone-portrait: '(max-width: #{$screen-xs-max}) and (orientation: portrait)',
phone-to-tablet: '(min-width: #{$screen-xs-min}) and (max-width: #{$screen-xs-max})',
tablet: '(max-width: #{$screen-sm-max})',
tablet-and-smaller: '(max-width: #{$screen-sm-max})',
tablet-and-down: '(max-width: #{$screen-sm-max})',
tablet-only: '(min-width: #{$screen-xs-max}) and (max-width: #{$screen-sm-max})',
tablet-landscape: '(min-width: #{$screen-xs-max}) and (max-width: #{$screen-sm-max}) and (orientation: landscape)',
tablet-portrait: '(min-width: #{$screen-xs-max}) and (max-width: #{$screen-sm-max}) and (orientation: portrait)',
tablet-and-larger: '(min-width: #{$screen-xs-max})',
tablet-and-up: '(min-width: #{$screen-xs-max})',
tablet-and-bigger: '(min-width: #{$screen-xs-max})',
tablet-to-desktop: '(min-width: #{$screen-sm-min}) and (max-width: #{$screen-sm-max})',
desktop: '(min-width: #{$screen-md-min})',
desktop-and-smaller: '(max-width: #{$screen-md-max})',
desktop-and-down: '(max-width: #{$screen-md-max})',
desktop-only: '(min-width: #{$screen-md-min}) and (max-width: #{$screen-md-max})',
desktop-and-larger: '(min-width: #{$screen-md-min})',
desktop-and-up: '(min-width: #{$screen-md-min})',
desktop-and-bigger: '(min-width: #{$screen-md-min})',
large-desktop: '(min-width: #{$screen-lg-min})',
large-desktop-only: '(min-width: #{$screen-lg-min})',
product-questions-phone-min:'(max-width: 320px)'
);
Code with fixes
$li-breakpoints: (
phone-min: '(max-width: #{$screen-xs})',
phone: '(max-width: #{$screen-xs-max})',
phone-and-smaller: '(max-width: #{$screen-xs-max})',
phone-and-down: '(max-width: #{$screen-xs-max})',
phone-only: '(max-width: #{$screen-xs-max})',
phone-landscape: '(max-width: #{$screen-xs-max}) and (orientation: landscape)',
phone-portrait: '(max-width: #{$screen-xs-max}) and (orientation: portrait)',
phone-to-tablet: '(min-width: #{$screen-xs-min}) and (max-width: #{$screen-xs-max})',
tablet: '(max-width: #{$screen-sm-max})',
tablet-and-smaller: '(max-width: #{$screen-sm-max})',
tablet-and-down: '(max-width: #{$screen-sm-max})',
tablet-only: '(min-width: #{$screen-sm-min}) and (max-width: #{$screen-sm-max})',
tablet-landscape: '(min-width: #{$screen-sm-min}) and (max-width: #{$screen-sm-max}) and (orientation: landscape)',
tablet-portrait: '(min-width: #{$screen-sm-min}) and (max-width: #{$screen-sm-max}) and (orientation: portrait)',
tablet-and-larger: '(min-width: #{$screen-sm-min})',
tablet-and-up: '(min-width: #{$screen-sm-min})',
tablet-and-bigger: '(min-width: #{$screen-sm-min})',
tablet-to-desktop: '(min-width: #{$screen-sm-min}) and (max-width: #{$screen-sm-max})',
desktop: '(min-width: #{$screen-md-min})',
desktop-and-smaller:'(max-width: #{$screen-md-max})',
desktop-and-down: '(max-width: #{$screen-md-max})',
desktop-only: '(min-width: #{$screen-md-min}) and (max-width: #{$screen-md-max})',
desktop-and-larger: '(min-width: #{$screen-md-min})',
desktop-and-up: '(min-width: #{$screen-md-min})',
desktop-and-bigger: '(min-width: #{$screen-md-min})',
large-desktop: '(min-width: #{$screen-lg-min})',
large-desktop-only: '(min-width: #{$screen-lg-min})',
product-questions-phone-min:'(max-width: 320px)'
);
Please pass this to the engineering team. Thanks.