You can use the below custom CSS –
.so-widget-lsow-portfolio .entry-title a {
color: #ddd;
font-size: 20px;
}
.so-widget-lsow-portfolio .entry-summary {
color: #149AD3;
}
.so-widget-lsow-portfolio .lsow-read-more a {
color: #B596A9;
background: #fff;
font-size: 14px;
}
.so-widget-lsow-portfolio .entry-title a:hover {
font-size: 20px;
color: #149AD3;
}
Regarding changing read more to “Find Out More” –
In the plugins folder you can find a folder named “languages” in that you can find translatable po files.
You can use a translation file (using POEdit to change the data in languages directory) to change to any string you like. If you do an update in the en_US.po (or another depending on your site language) file, you should see all the translatable strings in the strings list . You would then be able to input any alternate string of your choice there.
Here you can download poedit – https://poedit.net/