image border not showing on slideshow

Hello ~ I am developing https://www.bodyworker.org with Suffusion theme.
A Portfolio slideshow found at https://www.bodyworker.org/aloha-and-welcome/ is not conforming to stylesheet modifications included in Custom Includes, which specify a grey border:

#content img {border: 8px solid #797e83; margin: 0 auto 5px; -moz-border-radius: 20px;}
/* 4 rounded corners */
.all-four-rounded-corners {
	-webkit-border-radius: 20px;
	-khtml-border-radius: 20px;
	-moz-border-radius: 20px;
	border-radius: 20px;
	}

I have Firebug and used it to see the slideshow and what it is called in order to modify code, but could use help narrowing it down. Sorry for being dense! And thanks for help.

Here is other code I’ve included to format the slideshow:

.portfolio-slideshow {
text-align: center !important;
}
.slideshow-caption {
text-align: center !important;
}
.slideshow-nav {
text-align: center !important;
}