Again, this is only meant as a helper, its not to teach HTML.
here is the command to change font colors: (remember there is an open tag and a closing tag)
< font color="....." > the word you want colored here < /font >
in place of the dots add the color., example "red" or "blue" or "green", etc.
changing the font size is the same as well:
< font size=" add a number" > word you want larger or smaller here < / font >