It is strongly recommended that you use web-safe fonts on your website. If you don't, your visitor may view a different font on their computer because they do not have the font installed. This can cause problems with the appearance of your website.
Basic "safe" web fonts
Make an image
Times New Roman
If you need to have a specific font for a heading on your website, it is recommended that you turn it into a graphic, as shown below:
Any graphic editing program, can do this, including Microsoft Paint.