Resolve "Appointment type list"

Closes #66 (closed)

smash/web/static/css/smash.css

+.multi-checkboxes ul {
+    list-style: none;
+    column-count: 3;
+    -moz-column-count: 3;
+    -webkit-column-count: 3;
+}
+
+.multi-checkboxes li {
+    margin: 0;
+    padding: 0;
+}
+
+.flag-icon {
+    height: 20px;
+}
+
+.multi-checkboxes .form-control:not(select) {
+    -moz-appearance: initial;
+    -webkit-appearance: initial;
+    appearance: initial;
+}
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