diff --git a/src/css/index.css b/src/css/index.css
new file mode 100644
index 0000000..e6b4c36
--- /dev/null
+++ b/src/css/index.css
@@ -0,0 +1,13 @@
+.login {
+  display: block;
+  max-width: 400px;
+  margin: 20px auto;
+  padding: 16px;
+  border-radius: 2px;
+  background: #FFFFFF;
+}
+
+#about {
+  max-width: Calc(100% - 64px);
+  max-width: 700px;
+}