How do you send an email on Yahoo Mail classic?

click on the tab that says "new" on the downer lefthand corner. Press the letter T to choose a color to set the font in. Press the letter A to select your font size. Press F to select the kind of font you want to e-mail in. After you're done, hit "send" on the very bottom page of the lefthand corner and there you go. Click on the text area to write your e-mail.