diff --git a/data/style.css b/data/style.css
new file mode 100644
index 0000000..6e17fc2
--- /dev/null
+++ b/data/style.css
@@ -0,0 +1,20 @@
+html {
+    width: 100%;
+    height: 100%;
+}
+
+#euss {
+    margin-left: 1em;
+}
+
+#mainmenu {
+    background-color: rgb(255, 60, 0);
+    color: white;
+}
+
+#chrono {
+    font-size: 2em;
+    margin-left: auto;
+    margin-right: auto;
+    text-align: center;
+}
\ No newline at end of file