Thanks for your answer Rod !
In fact, I tried to modify things by myself; and settled for line-breaking instead of an awful big block of text.
But I also tried to justify the “long paragraph” as you say; but no changes happened. (Stays left-aligned; it did justify the occidental fonts inserted between J-words)
Also, Japanese is written with no spaces between words.
One more thing to take in account is : Only the words written with occidental normal fonts seem to be counted in the Word counts. So it’s like, my Japanese writings are not “recognized” by the theme.
Thanks anyway ! Very appreciated !
