Hello,
This is possible with the custom CSS. If you mean title in the shopping cart from the sidebar, add this code:
.product_list_widget li a {
margin-bottom: 8px;
display: block;
font-size: 12px;
letter-spacing: .3px;
text-transform: uppercase;
}
Edit this code as per your needs and add into Theme settings > Custom CSS.
In order to change the font-size on the shopping cart page, edit and add this code:
.shop_table td.product-name>a {
color: #424242;
text-transform: none;
letter-spacing: .3px;
display: block;
font-size: 20px;
}
Best Regards