edit style of card as panel

src/client/styles/scss/_override-bootstrap.scss

@@ -13,6 +13,23 @@
   }
 }
 
+// card (substitute panel of bootstrap3)
+.card {
+  margin-bottom: 20px;
+  border-radius: 0;
+}
+
+.card-header:not(.card-well) {
+  padding: 7px 15px;
+  font-weight: 700;
+  text-transform: none;
+  border-radius: 0;
+}
+
+.card-header:first-child {
+  border-radius: 0;
+}
+
 // Dropdowns
 .dropdown {
   .dropdown-toggle.btn.disabled {

src/client/styles/scss/theme/_apply-colors.scss

@@ -169,21 +169,12 @@ legend {
  * cards
  */
 .card {
-  margin-bottom: 20px;
   border: 1px solid #f0f0f0;
-  border-radius: 0;
 }
 
 .card-header {
-  padding: 7px 15px;
-  text-transform: none;
   background-color: #f0f0f0;
   border: 1px solid #f0f0f0;
-  border-radius: 0;
-}
-
-.card-header:first-child {
-  border-radius: 0;
 }
 
 .card.card-well {