@jeanette-denham1: You need to first create a child theme for this purpose. If you do not know how to create a child theme you can use Generate Child Theme Plugin.
After creating child theme go to the child theme folder and create a new folder fonts. Paste all the required fonts file in that folder.
Go to => Child Theme Folder => style.css and add the following CSS Code.
@font-face {
font-family: zapfino;
src: url("fonts/ZapfinoExtraLT-One.otf"),
url("fonts/ZapfinoExtraLTPro.otf"),
url("fonts/ZapfinoExtraLT-Two.otf"),
url("fonts/ZapfinoForteLTPro.otf");
font-weight: normal;
}
Replace the file name with your font file names.
Go to => Appearance => Customize => Additonial CSS and add the following CSS Code.
.site-title {
font-family:zapfino;
font-size:100px;
}
You can change the font-size according to your requirement.
Let me know if this works out.
Kind Regards,
Skandha