Reply To: Slider Excerpt border/box

Using Firebug I see that the issue is caused by:
html > body .slide-excerpt-border {
background: none;
border: 1px solid #ddd;
display: inline;
float: left;
margin: 10px;
padding: 14px;
position: relative;
z-index: 8;
} – which is indicated to be in the main css file.

However, when I search for .slide-excerpt-border in the style.css, there is only one entry
.slide-excerpt-border p {
font-weight: 900 !important;
color: #000000 !important;
border: 0px !important;}

What am I missing? How can I access the correct file?
Thanks!