[xwiki-users] I can not use less variable in a SSX

Hello, In ./skins/flamingo/less/bootstrap/variables.less we found: //== Media queries breakpoints // //## Define the breakpoints at which your layout will change, adapting to different screen sizes. ... // Small screen / tablet //** Deprecated `@screen-sm` as of v3.0.1 @screen-sm:                  768px; @screen-sm-min:              @screen-sm; Then I want use "screen-sm-min" in a new SSX object but this doesn't work:@media (min-width: @screen-sm-min) {   h1 {     color: fuchsia;    }}(If I replace screen-sm-min with his value 768px, my SSX work well.) Is it normal than @screen-sm-min doesn't work in a SSX?Thxs Pascal B