I don’t know how to use the font color and size 
and I still need to know how to compose songs without getting signed out… 
Please explain your problem in the title next time you need help!
To change font colour and size, highlight the word and click either the [normal] or buttons above the smilies.
Like this.
Like this.Also I don’t know about the signing out. Maybe if you delete your browser cookies it might help.