before animation slide starts callOnContentReady will be called
before animation slide starts callOnContentReady will be called

is necessary for responsiveEl to tell new element will be displayed

yacon/koala-framework,darimpulso/koala-framework,Ben-Ho/koala-framework,nsams/koala-framework,kaufmo/koala-framework,darimpulso/koala-framework,yacon/koala-framework,Sogl/koala-framework,nsams/koala-framework,koala-framework/koala-framework,yacon/koala-framework,kaufmo/koala-framework,koala-framework/koala-framework,kaufmo/koala-framework,nsams/koala-framework,Sogl/koala-framework,Ben-Ho/koala-framework