Hi MissAngela,
go to settings > appearance > editor > and within the Stylesheet.css
search for this set of code:
.hentry .thumbnail-title {
color: #fff;
font-family: Baskerville, “Playfair Display”, “Times New Roman”, serif;
font-size: 32px;
font-size: 3.2rem;
font-style: italic;
line-height: 32px;
overflow: hidden;
position: absolute;
top: 50%;
left: 50%;
text-align: center;
text-shadow: 0 0 2px rgba(0,0,0,.4);
-webkit-transform: translate(-50%, -50%);
-moz-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
vertical-align: middle;
word-wrap: break-word;
width: 180px;
and change
font-size: 32px;
font-size: 3.2rem;
to whatever size you like.
even also if necessary
line-height: 32px;
——————————
NB: 10px = 1.0rem
