Search added, but change window and back lets app crash

docroot/style.css

@@ -114,3 +114,35 @@ height: 31px;
 .Wt-dialog > div > div > div > h4 {
     margin: 0;
 }
+.handle {
+  top: calc(50% - 0.55rem) !important;
+  margin-left: 2px;
+  width: 1rem !important;
+  height: 1rem !important;
+  background-color: black;
+  border: 0;
+  border-radius: 1rem;
+
+  &:focus {
+    box-shadow: 0 0 0 1px #fff, 0 0 0 .25rem rgba(red($primary), green($primary), blue($primary), .25);
+  }
+}
+.search-line {
+    overflow: visible !important;
+}
+.popup-style {
+    position: relative;
+}
+.countries-drop-down {
+    overflow: auto;
+    background: RGBA(248, 248, 248, 0.8);
+    position: absolute;
+    max-height: 10em;
+    display: inline-block;
+    top: 100%;
+    left: 58px;
+    z-index: 20;
+    border: 1px solid #666;
+    box-shadow: 2px 2px 4px #666;
+    padding: 2px;
+}