update

app/static/css/styles.css

@@ -0,0 +1,43 @@
+body {
+    font-family: 'Helvetica', 'Arial', sans-serif;
+    margin: 0;
+    transition: background-color 0.3s, color 0.3s;
+}
+
+.content {
+    padding: 20px;
+}
+
+.group {
+    margin-bottom: 40px;
+}
+
+.group.collapsed .router-container {
+    display: none;
+}
+
+.router-container {
+    display: flex;
+    flex-wrap: wrap;
+    justify-content: flex-start;
+}
+
+.router {
+    border-radius: 8px;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+    padding: 20px;
+    margin: 10px;
+    flex: 1 1 calc(33.333% - 20px);
+    max-width: calc(33.333% - 20px);
+    text-align: center;
+    cursor: pointer;
+    transition: box-shadow 0.3s ease;
+    box-sizing: border-box;
+}
+/* Custom scrollbar for webkit browsers */
+body::-webkit-scrollbar {
+    width: 8px;
+    height: 8px;
+    overflow: visible;
+    display: none;
+}