Can I use multiple CSS classes for each tag?

Question

I am starting a new web project and would like to know if I can safely use several CSS classes at the moment.

<div class="float-left bold bordered"></div>

Does it support most common browsers or is a significant part of my visitors encountering serious problems viewing the page?

I don't care about special cases, such as Netscape 1.0 users, but the browsers and versions commonly used by companies these days.

Answer 1

Almost any modern browser should support this, it seems to be wrong in IE <= 6, but you should be fine, as this lack of functionality can interfere with many major sites / applications.

The following link contains a diagram showing browser support for several CSS classes:

CSS Browser Support

Netscape 1.0 probably does not support this, since Netscape did not support it in version 4.0. A source

Netscape 4.0+

• Multiple class names for an element are not supported.

Answer 2

Yes, every main browser supports this.