[RbnJrg]

Originally Posted by santosha

Thanks Rubén for your input!

I guess my question is also -- do I want to use it? What's your opinion?

I don't use it The default margins and paddings are ok for me. But if you do it, is not an error.

But my second question is then: If KindleGen, for example, converts CSS styling (such as the reset) to mobi-equivalents (where they exist), how will such a "style reset" convert over to .mobi?

Also, if I as you say might want to have an item with margins, can I override the style reset later in the CSS? I.e. does a following, specified style property override the universal selector?

If you use the universal selector to reset margins and paddings, and later, for example, you want a particular <p> tag with margins, you have to indicate it; that will override what you do with the universal selector but only for the class or the particular tag. Suppose you want a <p> with a margin-left of 1em, then you have two ways:

1. Styling "in-line":

<p style="margin-left: 1em">... some text ...</p>

2. Styling with a css stylesheet and a class:

Here in your css stylesheet you should write something like:

.ml {  /* here you can use any name */
   margin-left: 1em;
}

And in your .html page you write:

<p class="ml"> ... some text ... </p>

Of course, the second way is preferable because you can use that class with any <p>, <div>, etc. where you want a left margin of 1em. Those definitions, have priority over what you defined first with the universal selector. However, if you want to be more sure about the priority of a style, always you can use the property "!important" of that way:

.ml {
   margin-left: 1em !important;
}

But you won't need it (at least, in the cases I cited above).

...what regulates whether KindleGen will create a KF8 file (AZW3?) or a Mobi file from what I give it to compile?...

Kindlegen will generate a book compatible for both .kf8 and .mobi (in a same book, there are two versions, one for .kf8 and another for .mobi). Of that way, if you reader is a modern one, then will read the .kf8 part of the book; on the other hand, is your reader is an old one, then will read the .mobi part of the book.

Regards
Rubén