Fix category color css

pasapp/static/pasapp/css/tagcategories.css

+.tag {
+  background-color: rgba(49, 235, 179, 0.6);
+  border: 1px rgba(49, 235, 179, 1) solid;
+}
+
 .tag.prerequisite-class {
   background-color: rgba(220, 38, 127, 0.6);
-  border: 1px rgba(220, 38, 127, 1) solid;
+  border-color: rgba(220, 38, 127, 1);
 }
 
 .tag.specialization {
   background-color: rgba(255, 97, 0, 0.6);
-  border: 1px rgba(255, 97, 0, 1) solid;
+  border-color: rgba(255, 97, 0, 1);
 }
 
 .tag.subject {
   background-color: rgba(255, 176, 0, 0.6);
-  border: 1px rgba(255, 176, 0, 1) solid;
+  border-color: rgba(255, 176, 0, 1);
 }
 
 .tag.topic-of-interest {
   background-color: rgba(100, 143, 255, 0.6);
-  border: 1px rgba(100, 143, 255, 1) solid;
+  border-color: rgba(100, 143, 255, 1);
 }
 
 .tag.method {
   background-color: rgba(120, 94, 240, 0.6);
-  border: 1px rgba(120, 94, 240, 1) solid;
+  border-color: rgba(120, 94, 240, 1);
 }
 
 /* rgba(0, 77, 64, 0.4), rgba(170, 68, 153, 0.4), rgba(51, 34, 136, 0.4)*/
\ No newline at end of file