Can a div have multiple classes (Twitter Bootstrap) [duplicate]

Answer 1

You can add as many classes to an element, but you can add only one id per element.

<div id="unique" class="class1 class2 class3 class4"></div>

Answer 2

Absolutely, divs can have more than one class and with some Bootstrap components you'll often need to have multiple classes for them to function as you want them to. Applying multiple classes of course is possible outside of bootstrap as well. All you have to do is separate each class with a space.

Example below:

<label class="checkbox inline">
   <input type="checkbox" id="inlineCheckbox1" value="option1"> 1
</label>

Answer 3

A div can can hold more than one classes either using bootstrap or not

<div class="active dropdown-toggle my-class">Multiple Classes</div>
For applying multiple classes just separate the classes by space.

Take a look at this links you will find many examples
http://getbootstrap.com/css/
http://css-tricks.com/un-bloat-css-by-using-multiple-classes/