Make image float to the right of text

Make image float to the right of text

When I insert an image into a text element using the insert image tool, the image always appears on the left side of the text block and the the text does not wrap around it.  How do I get an image to appear on the right side of a text block with text wrap.  I'm sure it is to be done using CSS but I am unclear on how to do that. Please provide examples.  Thanks.