Post width

Hi All

have used
http://gen2tt.esy.es/index.php/cadets-and-juniors/

The page code is:
[catlist id=3 template=gen2_template numberposts=5 excerpt=yes thumbnail=yes thumbnail_size=80,80 customfield_display=”externallink”]

The related articles do not fit the width of the white space available – please help me! Ive tried re sizing a number of the tags including lcp_catlist and others which appear in the screen.css file

Any advice much appreciated if anyone had similar?

thanks

https://wordpress.org/plugins/list-category-posts/