diff --git a/src/index.css b/src/index.css
new file mode 100644
index 0000000..72c144a
--- /dev/null
+++ b/src/index.css
@@ -0,0 +1,29 @@
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  background-color: #f5f7fa;
+}
+
+button {
+  border: none;
+  background: none;
+  cursor: pointer;
+  font-family: inherit;
+}
+
+a {
+  text-decoration: none;
+  color: inherit;
+}
+
+#root {
+  width: 100%;
+  min-height: 100vh;
+}