To drag and drop an element begin by activating the paragraph or element that you want to move. This is done by clicking once inside of the element. In the picture below, you can see the paragraph element has been activated. You will know that it is properly activated when you see the word 'Paragraph' in the upper left corner.

Once activated, you can grab the element with your mouse and drag it to your desired location.

If you would like to move an image to a different location begin by activating the paragraph element associated with the image. You can do this by clicking just to the left or right of the image (just outside) this will activate the parent element of the image - namely the paragraph element. You will know that you have activated the correct element when you see the word 'Paragraph' in the upper left corner.

As with the text element, grab the container with your mouse and drag it to your desired location.