CSS changes have no effect

Really nice plugin. However, having looked through this forum for a solution. It is unusable in it’s current state.

http://www.firstintheq.co.uk/coach

No matter what changes I make to the CSS – they have no effect. The widget displays tiny text – stuck.

#ivycat-testimonial h3 {
/* removes header */
display: none;
}
#ivycat-testimonial .ict-content,
#ivycat-testimonial footer {
font-size:100%; – this has no effect
/*text-transform: none; /* removes all-caps */
line-height: 1.5;*/
}

Any suggestions, much appreciated. If I can’t sort this, I’ll have to keep looking.

Cheers,

Mike

https://ww.wp.xz.cn/plugins/ivycat-ajax-testimonials/