保存进度！

入门/cli/hello-cli/src/assets/css/root.css

@@ -0,0 +1,20 @@
+:root {
+    font-size: 1em;
+    box-sizing: border-box;
+}
+
+*,
+*::before,
+*::after {
+    margin: 0;
+    padding: 0;
+    box-sizing: inherit;
+}
+
+body {
+    font-family: Arial, Helvetica, sans-serif;
+}
+
+.pointer {
+    cursor: pointer;
+}