DTD in xml deprecated?

Question

Java

In xml, dtd is very much used, but I read it and came to the conclusion that they are trying to refuse dtd in xml, is that so? Worth studying? (Question in relation to java)

Answer 1

You ask as if it takes months or years to learn. He masters in an hour or two, if not slowpoke.
Well, you need to dance from tasks: if you need it already - teach it, if you don’t need it - don’t teach it (you will meet when / if necessary).

Answer 2

In general, I poked a little, came to the conclusion that the carousel is correctly connected in this place:

$('.next-stage').click(function() {
    $('.carousel-navigation').jcarousel('scroll', '+=1');
});
  $('.prev-stage').click(function() {
    $('.carousel-navigation').jcarousel('scroll', '-=1');
});

and here it messes up:
why? so far I have not understood.
Yandex browser.
And check whether the behavior is really different in different browsers, or just "lucky"?

Answer 3

Works in IE and FF, but not in Chrome and Opera.