The reason why you were still having the issue is because you haven’t imported the Weston font and using the Arvo font. Hence in your case,
.tp-caption.extinct_white{
position: absolute;
color: #e5e5e5;
text-shadow: none;
font-weight: normal;
font-size: 36px;
line-height: 52px;
font-family: "Arvo";
text-align: center;
letter-spacing:6px;
margin: 0px;
border-width: 0px;
border-style: none;
background-color:transparent;
}
should fix the issue (the Weston replaced by Arvo font in CSS). Thanks