Add support for CSS

[nguyenhoan]

No description provided.

[RobertHSchmidt]

The cssparser throws an error when it encounters media queries. Will pick up the media rule but ignores the and (max-width: 699px) and (min-width: 520px) part.
i.e.
@media screen and (max-width: 699px) and (min-width: 520px) {
ul li a {
padding-left: 30px;
background: url(email-icon.png) left center no-repeat;
}
}

during parsing gives this error.
null [1:15] Error in @media rule. (Invalid token "and". Was expecting one of: , , .)
null [1:15] Ignoring the whole rule.