Font of site title not applied on every page

Hey guys,

I need help.

I’ve used the SiteOrigin CSS plugin to change the font of my site title to Yeseva One, which worked fine. Now I’ve added a new page, and the font of the site title on this new page is different (the font on the old page is still Yeseva One as it should be). I’ve tried to change the font of the site title to Open Sans to see what would happen, en then it does change it on the new page as well. The problem only seems to occur with the Yeseva One font. Can anyone please tell me what the problem could be?

This is the CSS I’ve used:

.site-title {
background-color: #ffffff;
font-weight: 500;
font-size: 30px;
font-family: Yeseva One;
}

Thanks in advance!