diff --git a/webfx-kit/webfx-kit-javafxcontrols-peers-gwt-j2cl/src/main/webfx/css/webfx-kit-javafxcontrols-web@main.css b/webfx-kit/webfx-kit-javafxcontrols-peers-gwt-j2cl/src/main/webfx/css/webfx-kit-javafxcontrols-web@main.css
index 2267c820b..effe580ca 100644
--- a/webfx-kit/webfx-kit-javafxcontrols-peers-gwt-j2cl/src/main/webfx/css/webfx-kit-javafxcontrols-web@main.css
+++ b/webfx-kit/webfx-kit-javafxcontrols-peers-gwt-j2cl/src/main/webfx/css/webfx-kit-javafxcontrols-web@main.css
@@ -49,3 +49,8 @@ input[type="text"], input[type="password"] {
     outline: none;
     background-color: transparent;
 }
+
+/* Cross for the tab close button */
+.tab-close-button {
+    background-image: url( "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' stroke='%23444' stroke-width='2' stroke-linejoin='round' viewBox=\'0 0 16 16\'%3E%3Cpath d=\'M 4,4 L 12,12 Z M 4,12 L 12,4 Z\'/%3E%3C/svg%3E");
+}