Going back to vanilla css

app/static/css/utils.css

@@ -0,0 +1,21 @@
+.clearfix::after {
+  clear: both;
+  content: "";
+  display: block;
+}
+
+.clickable {
+  cursor: pointer !important;
+}
+
+.fixed {
+  position: fixed;
+}
+
+.show-if-only-child:not(:only-child) {
+  display: none !important;
+}
+
+[draggable="true"] {
+  cursor: move !important;
+}