Is it standard to use multiple styles for one tag? _html/css_WEB-ITnose

I just tried it and it seems to work. If it is not standard, I need to use many divs, all of which are the same except for the background color. How should I make them conform to the standard?

The same properties seem to be overridden according to the order in the css file.

Reply to discussion (solution)

Refer to w3cschool
http://w3schools.com/html/default.asp

This does not violate

Do not use non-standard sticky notes and css attributes in the page

It is compliant, just separate multiple attributes with spaces

.a {}
.b {}


div class="a b"
That’s it, no problem.