Ah, I see!
After a bit of troubleshooting, looks like I was able to get it to look like I wanted it to using this new Class. Thanks so much!
For others that may be interested in the updated CSS (since things definitely got weird after I changed it), here ya go:
.alert-global-notice {
-webkit-box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
-moz-box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
background-image: url("http://www.deformers.com/_images/bgrd-iconX991.png");
background-repeat: no-repeat;
background-position: left;
padding-left: 175px;
padding-top: 5px;
padding-bottom: 5px;
padding-right: 5px;
background-color: #7c6ba3;
border-left: 10px solid transparent;
border-top: 8px solid transparent;
border-right: 5px solid transparent;
border-bottom: 8px solid transparent;
border-radius: 6px;
margin: 16px 0px 16px 0px;
}
.alert.alert-info {
color: #f4f4f4;
}