How do you add CSS with Javascript?

Question

How do you add CSS rules (eg strong { color: red }) by use of Javascript?

Answer 1

You can add classes or style attributes on an element by element basis.

For example:

text

Where you could do this.style.background, this.style.font-size, etc. You can also apply a style using this same method ala

this.className='classname';

If you want to do this in a javascript function, you can use getElementByID rather than 'this'.