Answer 1

The shortness of the code is biggest factor.
Like in css you have to write much for slider toogle
But in jQuery it just a line.
Silarily for other..

Answer 2

maDCoder 💉 you're welcome

Answer 3

Flash animations are a completley different subject than html,css,js.

You can't create animations in plain html.

Use css for animations or a javascript framework to animate certain elements. Maybe search on YouTube for some help making animations in css. ;D

Answer 4

maDCoder 💉 I am not an expert :). Learn what you feel more comfortable with.