The bgcolor tag is property setting of the body tag. You can specify a range of 255 colors using this setting. Using color names w orks for only a small handful of colors like red, blue, white, black, green . The safe way to display colors is to use the RGB hexadecimal notation. The codes for these colors can be looked up on the web or some graphics programs will display them also.
Lets change the colors into hexadecimal notation.
The document should be displayed exactly the same. Your words should be aligned to the right of the web browser screen. Try changing the window size of your browser the text should adjust with the browser. You should be comfortable with the idea of tags and how they work. Defining properties in certain tags is also a concept that should be straight forward.