So now i'm able to deal with nice CSS...
But I don't really understand why / when we do have to write this this way :
var css = ' '
/* whatever */
return css
and some other times :
var css = '/* whatever */ '
return css
I tried a few things... had to believe that it was related to :host
vs .item
CSS definition... or because we were dealing with conditionnal statement after this... but, that's not clear...
I'm going forward step by step into that deep deep web-azonian jungle...
So any precision would really help me to understand why i did all that i did the way i did it....