Is there a maximum length for the class name in CSS?

Question

Is there a maximum number of caracters for the name of a class in CSS ?

Answer 1

To add to what others have written, would just like to add if - like me - you find you sometimes end up with crazy long names (because you like being descriptive) then it's worth bearing in mind selectors, which also promotes style re-use and helps keep things easy to read.

e.g.

h1 {
   1.5em;
}

styledParagraph {
   font-size: 1em;
}

/* Override the default font size if the styledParagraph element is inside an element with the class articlePage */
.articlePage .styledParagraph {
    font-size: 1.5em;
}

/* Make all 
 elements in .articlePage -> . styledParagraph larger than the default */
.articlePage .styledParagraph h1 {
  font-size: 2em;
}

This is very widely supported (even in MSIE 6) and it's much easier to read than a class name like .articlePageStyleParagraphHeading.