First Working version. I can add table

src/assets/main.css

@@ -0,0 +1,25 @@
+:root {
+    --theme-controller-zindex: 1000;
+    --datagrid-sidebar-zindex: 900;
+    --datagrid-scrollbars-zindex: 800;
+}
+
+.mmt-tooltip-container {
+    background: var(--color-base-200);
+    padding: 5px 10px;
+    border-radius: 4px;
+    pointer-events: none; /* Prevent interfering with mouse events */
+    font-size: 12px;
+    white-space: nowrap;
+    opacity: 0; /* Default to invisible */
+    visibility: hidden; /* Prevent interaction when invisible */
+    transition: opacity 0.3s ease, visibility 0s linear 0.3s; /* Delay visibility removal */
+    position: fixed; /* Keep it above other content and adjust position */
+    z-index: 10; /* Ensure it's on top */
+}
+
+.mmt-tooltip-container[data-visible="true"] {
+    opacity: 1;
+    visibility: visible; /* Show tooltip */
+    transition: opacity 0.3s ease; /* No delay when becoming visible */
+}