Can't change font in standard yahoo mail

I understand your concern!

Unfortunately, Yahoo Mail's standard interface doesn't allow you to change the font style or size. The font is set by Yahoo and is not customizable.

However, there are a few workarounds you can try:

1. Use a third-party email client: You can use a third-party email client like Mozilla Thunderbird, Microsoft Outlook, or Apple Mail, which allows you to customize the font and other settings. You'll need to set up your Yahoo Mail account in the third-party client.
2. Use a browser extension: Some browser extensions, like Stylish or User Agent Switcher, can help you customize the font and other aspects of Yahoo Mail's interface. Keep in mind that these extensions may not work with all browsers or versions of Yahoo Mail.
3. Use a text editor: If you only need to change the font for a specific email, you can copy the text, open a text editor like Notepad or TextEdit, and change the font. Then, paste the text back into the email.
4. Use a web-based email client: If you're looking for a more customizable email experience, you might consider switching to a web-based email client like Gmail, Outlook.com, or ProtonMail, which offer more flexibility in terms of font and layout customization.

I hope these workarounds help you achieve the font customization you're looking for!