Co-worker here, yeah, truly some pages of the site are not yet quite responsive, sorry for that, we plan to improve it in the future. On the site there are some

Co-worker here, yeah, truly some pages of the site are not yet quite responsive, sorry for that, we plan to improve it in the future. On the site there are some particular templates designed to show the responsiveness or non-responsiveness, you could open them on smart phone or desktop computer to see the differences: http://semantic-ui-forest.com/templates/bootstrap/grid/ http://semantic-ui-forest.com/templates/bootstrap/grid/ http://semantic-ui-forest.com/templates/bootstrap/navbar-fixed-top/ http://semantic-ui-forest.com/templates/bootstrap/navbar-fix... http://semantic-ui-forest.com/templates/bootstrap/non-responsive/ http://semantic-ui-forest.com/templates/bootstrap/non-respon... Semantic-UI gives more freedom for features like responsiveness, theme customization with 3000+ variables, although the default configurations are also very good.