Update collapse.css

Author: zyaocoder

assets/css/collapse.css

@@ -14,4 +14,20 @@
 .container .content {
     display: none;
     padding : 5px;
-}
+}
+
+.paper-box-image > div {
+  position: relative;
+}
+
+.paper-box-image .badge {
+  position: absolute;
+  top: 10px;
+  left: 10px;
+  padding: 4px 10px;
+  border-radius: 4px;
+  font-size: 0.75rem;
+  font-weight: 600;
+  background: rgba(0, 0, 0, 0.75); /* or your theme color */
+  color: #fff;
+}