add css

musi/homepage.css

+/* Custom page CSS
+-------------------------------------------------- */
+/* Not required for template or sticky footer method. */
+
+.container {
+    width: auto;
+    max-width: 680px;
+    padding: 0 15px;
+  }
+  
+.footer {
+  background-color: #f5f5f5;
+}
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