Updated article: Declaring character encodings in CSS

This update brings the article in line with recent developments in CSS, and reorganizes the material so that readers can find information more quickly. This led to the article being almost completely rewritten.

The article addresses the question: How do I declare the character encoding of a CSS style sheet?

German, Greek, Spanish, Hebrew, Hungarian, Brazilian Portuguese, Russian, Swedish, Ukrainian and Vietnamese translators are asked to update their translation of this article within the next month, otherwise the translations will be removed per the translation policy, since the changes are substantive.