Whenever you use illegal HTML the end result can NOT be guaranteed. This method should not be used. Allows pixel level indentation control. This method also allows the creation of floating spacing elements. Fair degradation can occur by using the ALT attribute - browsers often preserve multiple spaces in its display.
Most graphical browsers support image insertion.
Text-only browsers will not be able to render the desired graphic indentation. ALT attribute to the image tag may collapse multiple consecutive spaces to one. Extra download request and time is necessary to load the image. Browsers that support images but do not support transparent images may display a colored image in the requested indentation space. Can control either first line or entire blocks of text.