Change colorpicker size on very small screens

static/style.css

@@ -241,6 +241,12 @@ body {
   main > div:first-child > a > .text {
     display: none;
   }
+
+  .colorpicker > label {
+    width: 60px !important;
+    height: 60px !important;
+    padding: .5em !important;
+  }
 }
 
 @media (min-width: 992px) {